Latin 2 Quiz: High Frequency Adjectives And Adverbs
10 questions · exam conditions
0:00
High Frequency Adjectives And AdverbsQuestion 1 of 10

Marcus et Gaius in foro ambulabant. Subito canis magnus ad eos cucurrit. Gaius fortiter stetit, sed Marcus celeriter fugit.

In the passage above, which pair of adverbs is used to contrast the behaviors of Gaius and Marcus, and what is the most accurate rendering of their contrast in English?

'fortiter' and 'celeriter' — Gaius stood 'bravely' while Marcus fled 'quickly,' highlighting courage versus flight
'subito' and 'celeriter' — the dog arrived 'suddenly' and Marcus fled 'often,' showing repeated fearful behavior
'fortiter' and 'subito' — Gaius stood 'bravely' while the dog attacked 'suddenly,' contrasting human and animal action
'celeriter' and 'saepe' — Marcus fled 'quickly' and 'often,' suggesting a habitual pattern of cowardice throughout the passage
← Back to quizzes

Latin 2 Quiz

Latin 2 Quiz: High Frequency Adjectives And Adverbs

Practice High Frequency Adjectives And Adverbs in Latin 2 with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on High Frequency Adjectives And Adverbs, giving you a quick way to practice the rules, question types, and explanations that matter most for Latin 2.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

Marcus et Gaius in foro ambulabant. Subito canis magnus ad eos cucurrit. Gaius fortiter stetit, sed Marcus celeriter fugit.

In the passage above, which pair of adverbs is used to contrast the behaviors of Gaius and Marcus, and what is the most accurate rendering of their contrast in English?

  1. 'fortiter' and 'celeriter' — Gaius stood 'bravely' while Marcus fled 'quickly,' highlighting courage versus flight (correct answer)
  2. 'subito' and 'celeriter' — the dog arrived 'suddenly' and Marcus fled 'often,' showing repeated fearful behavior
  3. 'fortiter' and 'subito' — Gaius stood 'bravely' while the dog attacked 'suddenly,' contrasting human and animal action
  4. 'celeriter' and 'saepe' — Marcus fled 'quickly' and 'often,' suggesting a habitual pattern of cowardice throughout the passage
Explanation: When reading Latin passages, pay close attention to how adverbs function: they modify verbs and reveal how an action is performed. When a passage contrasts two characters' reactions, the adverbs attached to each character's verb are your key evidence. In this passage, Gaius and Marcus respond differently to the same dog. Gaius's verb is stetit ("stood"), modified by fortiter ("bravely"). Marcus's verb is fugit ("fled"), modified by celeriter ("quickly"). Together, these two adverbs create a deliberate contrast — courage versus fearful retreat — making A the correct answer. The sentence structure even signals the contrast with sed ("but"), a coordinating conjunction that sets the two reactions against each other. Choice B misreads subito ("suddenly") as belonging to the Gaius/Marcus contrast. Subito modifies the dog's arrival, not either man's reaction — and translating celeriter as "often" is a vocabulary error; "often" is saepe in Latin. Choice C pairs fortiter with subito, but again, subito describes the dog, not Marcus, so it cannot contrast human behaviors. Choice D invents the word saepe entirely — it does not appear anywhere in the passage. This is a classic distractor trap: introducing a Latin term that sounds plausible but is simply absent from the text. A useful strategy: before answering contrast questions, underline each character's verb and its accompanying adverb. Then check whether the sentence contains a contrast word like sed or tamen — these are reliable signals that the author is deliberately setting two things against each other.

Question 2

A Latin student reads the sentence: Milites saepissime fortissime pugnaverunt. She translates it as 'The soldiers very often fought very bravely.' Her teacher marks the translation correct but notes that one morphological claim is wrong. Which of the following best identifies the error in her grammatical analysis?

  1. 'saepissime' is the superlative adverb of 'saepe,' meaning 'most often' or 'very often,' but 'fortissime' is the superlative adverb of 'fortis,' meaning 'most bravely' — both forms are superlative adverbs, so her analysis is actually entirely correct (correct answer)
  2. 'saepissime' is correctly identified as a superlative adverb, but 'fortissime' should be analyzed as a superlative adjective modifying 'milites,' not as an adverb modifying 'pugnaverunt'
  3. 'fortissime' is the superlative adverb and is correct, but 'saepissime' is actually the comparative adverb form of 'saepe,' meaning 'more often,' not 'very often'
  4. 'saepissime' is a superlative adverb correctly derived from 'saepe,' but 'fortissime' cannot function as an adverb in classical Latin — it is exclusively a superlative adjective form used only predicatively
Explanation: When analyzing Latin adverbs, it helps to remember how superlative adverbs are formed: take the superlative adjective stem and add -e. So fortis → superlative adjective fortissimus → superlative adverb fortissime ("most bravely / very bravely"). Similarly, saepe forms its superlative adverb saepissime ("most often / very often") — an irregular but standard form. Both words in this sentence are functioning as adverbs modifying pugnaverunt, and both are correctly identified as superlatives. The translation "very often fought very bravely" is accurate, and the morphological analysis behind it is also sound. So the teacher's note that "one morphological claim is wrong" is itself mistaken — the student's analysis is entirely correct, which makes A the right answer. Choice B is wrong because fortissime ending in -e is the adverb form, not the adjective. The superlative adjective would be fortissimus/-a/-um; fortissime cannot modify milites as an adjective. Choice C is wrong because saepissime is unmistakably superlative — the comparative adverb of saepe is saepius ("more often"), a completely different form. Confusing comparative and superlative is a classic trap. Choice D is wrong because it invents a false rule: fortissime absolutely can and does function as an adverb in classical Latin; that is precisely what the -e ending signals. As a study tip: always check the ending to distinguish superlative adjectives (-issimus/-a/-um) from superlative adverbs (-issime). If a question tells you something is "exclusively" one form, that's often the distractor — Latin forms are usually more flexible than that.

Question 3

Which of the following Latin sentences most precisely conveys the idea that the general used to be brave in the past but that quality is no longer implied in the present context — relying on the correct use of a high-frequency adjective?

  1. Dux olim fortis erat, nunc autem timidus esse videtur. — 'The general once was brave, but now he seems to be fearful.' (correct answer)
  2. Dux fortis semper pugnat et vincit hostes in proelio magno. — 'The brave general always fights and defeats enemies in great battle.'
  3. Dux fortissimus omnium militum hodie in campo stat. — 'The very bravest general of all soldiers stands in the field today.'
  4. Dux fortiter et celeriter ad castra sua rediit post proelium. — 'The general returned bravely and quickly to his camp after the battle.'
Explanation: When a question asks you to identify a sentence that places a quality specifically in the past while implying it no longer holds, you need to look for two things together: a high-frequency adjective like fortis ("brave") and a verb construction that explicitly contrasts past and present. Answer A does exactly this. Dux olim fortis erat uses the imperfect indicative erat ("was") paired with olim ("once/formerly"), which anchors the general's bravery firmly in the past. The conjunction nunc autem ("but now") then pivots to the present, where bravery is conspicuously absent — replaced by fearfulness. This contrast is the grammatical and semantic heart of what the question is asking for. Fortis is also one of Latin's highest-frequency third-declension adjectives, satisfying that condition precisely. Answer B uses fortis as a present attributive adjective — the general is brave right now and always fights. There's no past contrast at all; bravery is ongoing and unqualified. Answer C uses the superlative fortissimus, which is a different form entirely and speaks only to the present moment. No past quality is implied to have faded. Answer D is a trap for students who confuse adjectives with adverbs. Fortiter is the adverb ("bravely"), not the adjective fortis. The question specifically asks for an adjective, so this option fails on a grammatical category level. Your study tip: on Latin-2 questions, always check both the word form (adjective vs. adverb) and the tense/temporal markers. A sentence can use the right vocabulary but still fail to express the right time relationship.

Question 4

Puella, quamquam saepe timida erat, hodie audacter in forum processit et magna voce locuta est.

A student argues that the passage above contains a semantic tension created by the juxtaposition of two specific words. Which pair does the student most likely have in mind, and why is the tension meaningful?

  1. 'saepe' (often) and 'hodie' (today): the adverb of frequency contrasts with a specific temporal marker, implying that today is an exception to the girl's usual fearful behavior (correct answer)
  2. 'timida' (fearful) and 'magna' (great/loud): the adjectives create tension because being fearful and speaking loudly are physically incompatible actions in any Roman social context
  3. 'audacter' (boldly) and 'locuta est' (she spoke): the adverb and the verb clash because 'audacter' can only modify verbs of motion in classical Latin, not verbs of speaking
  4. 'quamquam' (although) and 'processit' (she advanced): the concessive conjunction and the verb of motion create tension by implying that entering the forum was itself an act of timidity
Explanation: When analyzing literary or rhetorical tension in a Latin passage, look for words that create meaningful contrast — not just any two words that differ, but pairs where the opposition illuminates something about character, situation, or theme. Here, the passage tells us the girl was often fearful but today she boldly entered the forum and spoke loudly. The student is identifying a tension between 'saepe' (often) and 'hodie' (today) — answer A. These two temporal markers work against each other in a purposeful way: saepe establishes a habitual pattern of timidity, while hodie signals a rupture in that pattern. The tension is meaningful precisely because it makes today exceptional. The whole sentence is structured to highlight this shift — the quamquam clause reinforces her usual character, making her boldness all the more striking. Answer B is tempting because timida and magna do seem like opposites, but the claim that fearfulness and loud speech are "physically incompatible in any Roman social context" overreaches. The passage itself shows they aren't incompatible — the girl overcame her fear. B misreads contrast as contradiction. Answer C is simply false: audacter is a standard adverb that can freely modify verbs of speaking in classical Latin; there is no grammatical restriction. Answer D misidentifies the tension — quamquam and processit work together logically (concessive + result), and entering the forum is framed as courageous, not timid. A good strategy: when a question asks about "semantic tension," ask yourself which pairing tells you something about character or narrative change, not just which words seem opposite in isolation.

Question 5

A student encounters the Latin word mox in a reading and must choose the best English equivalent in context. The sentence reads: Romani, postquam hostes vicerunt, mox domum reverterunt. Which of the following best explains why 'suddenly' is an INCORRECT translation of mox here, and what the correct meaning is?

  1. 'Suddenly' is incorrect because it would require the adverb 'iam' in this position; 'mox' instead means 'often' and indicates the Romans habitually returned home after their campaigns
  2. 'Suddenly' is incorrect because 'mox' is exclusively a spatial adverb meaning 'nearby' or 'close by' in classical Latin, and the sentence describes physical proximity to home rather than timing
  3. 'Suddenly' would be incorrect only if the Romans had planned their return in advance; since the text does not specify whether the return was planned, both 'suddenly' and 'soon' are equally valid translations of 'mox'
  4. 'Suddenly' implies an unexpected or startling quickness, but 'mox' conveys 'soon' or 'presently' — an anticipated near-future action — making 'soon' the contextually accurate translation after their victory (correct answer)
Explanation: When you encounter an unfamiliar Latin adverb, your first instinct should be to consider its temporal versus spatial function and its precise nuance — because many adverbs have near-synonyms in English that feel interchangeable but carry meaningfully different connotations. In this sentence, Romani, postquam hostes vicerunt, mox domum reverterunt, the logical flow is: the Romans defeated their enemies, and then mox describes when they returned home. The word mox is a classical Latin temporal adverb meaning "soon" or "presently" — it signals an action anticipated to happen in the near future, following naturally from what preceded it. Here, returning home soon after victory fits perfectly: it's an expected, orderly consequence. Answer D captures this precisely, correctly distinguishing "soon" (anticipated near-future) from "suddenly" (unexpected, startling quickness). Answer A is wrong on multiple counts: iam means "now/already," not "suddenly," and mox never means "often" — that would be saepe. Answer B fabricates an entirely false definition; mox has no spatial meaning whatsoever in classical Latin. Calling it an adverb of place like prope ("nearby") is a invented distractor. Answer C tries to make translation ambiguity seem plausible by introducing a logical condition (planned vs. unplanned return), but translation depends on what a word means, not on narrative context about intent — and mox simply does not mean "suddenly" under any circumstance. As a study habit, build a mental list of easily confused adverbs: mox (soon), subito (suddenly), iam (now/already), and saepe (often). Confusing these is one of the most common traps on Latin vocabulary questions.

Question 6

A student reads: Consul, vir prudens et callidus, rem publicam diu et diligenter administravit. She must identify all adjectives and adverbs and correctly classify each. Which of the following analyses is entirely accurate?

  1. 'Prudens' and 'callidus' are adjectives modifying 'vir'; 'diu' is an adjective modifying 'rem publicam' in an attributive position; 'diligenter' is the only adverb in the sentence and modifies 'administravit'
  2. 'Prudens' and 'callidus' are adjectives modifying 'vir'; 'diu' (for a long time) and 'diligenter' (diligently) are adverbs modifying 'administravit'; 'prudens' is a 3rd declension adjective while 'callidus' is a 1st/2nd declension adjective (correct answer)
  3. 'Prudens,' 'callidus,' and 'diligenter' are all adjectives in the sentence; 'diu' is the only adverb; 'diligenter' agrees with 'vir' as a predicate adjective describing the consul's character rather than modifying the verb
  4. 'Diu' and 'diligenter' are both adverbs correctly identified, but 'prudens' and 'callidus' are predicate adjectives linked to 'consul' by an implied 'est,' not attributive adjectives — they modify the noun only through the verb 'to be' understood
Explanation: When analyzing a Latin sentence for adjectives and adverbs, your first move should be to ask two questions for each word: Does it modify a noun (adjective)? Or does it modify a verb, adjective, or another adverb (adverb)? Then, for adjectives, check declension patterns. In Consul, vir prudens et callidus, rem publicam diu et diligenter administravit, the appositive phrase vir prudens et callidus tells us about the consul's character. Both prudens and callidus directly modify vir, making them attributive adjectives. Notice their declension: prudens is a third-declension adjective (one termination, genitive prudentis), while callidus belongs to the first/second declension (us/a/um pattern). Meanwhile, diu ("for a long time") and diligenter ("diligently") answer how long and how the consul administered — both modify the verb administravit, making them adverbs. Answer B captures all of this correctly and earns full credit. Answer A fails by misclassifying diu as an adjective modifying rem publicam. Adverbs are invariable — they never change form to agree with nouns, so diu cannot be an adjective in any position. Answer C makes the same error in reverse, wrongly calling diligenter an adjective agreeing with vir. Adjectives must match their noun in case, number, and gender; diligenter is an adverb form and cannot do that. Answer D incorrectly labels prudens and callidus as predicate adjectives linked through an implied est. Predicate adjectives require a linking verb; here, the words sit inside an appositive phrase, functioning attributively. A reliable study tip: if a word ends in -ter (like diligenter, fortiter, celeriter), it is almost certainly an adverb — memorize that suffix as your adverb flag.

Question 7

Puer parvus et puer magnus ad ludum ibant. Puer magnus celeriter ambulabat; puer parvus tamen aegre sequebatur.

The adverb 'aegre' in the passage is crucial to understanding the smaller boy's situation. Which of the following best captures the full semantic weight of 'aegre' in this context, and why would translating it simply as 'slowly' be misleading?

  1. 'Aegre' means 'slowly' in all classical Latin texts and is a direct synonym of 'lente'; the translation 'slowly' is therefore not misleading at all, since both words describe the same quality of motion and carry identical semantic content without additional nuance
  2. 'Aegre' means 'with difficulty' or 'hardly/scarcely,' implying effort and struggle rather than mere slowness — translating it as 'slowly' loses the sense of strain and physical hardship, reducing a word about exertion to a word about pace (correct answer)
  3. 'Aegre' means 'reluctantly' or 'unwillingly,' indicating that the smaller boy chose not to keep up out of psychological resistance rather than physical inability — translating it as 'slowly' misleadingly implies a physical limitation where the text implies an emotional one
  4. 'Aegre' is an adjective modifying 'puer parvus' rather than an adverb modifying 'sequebatur,' so the sentence should be rendered 'the troubled/unhappy small boy followed' — translating it as 'slowly' is wrong because it entirely misidentifies the word's grammatical function and syntactic role
Explanation: When you encounter a Latin vocabulary question like this, your job isn't just to recall a definition — it's to understand the full semantic range of a word and what gets lost in an imprecise translation. That skill is exactly what's being tested here. The word aegre carries the core meaning of "with difficulty," "hardly," or "scarcely." It comes from the same root as aeger (sick, troubled, distressed), and it implies effort, strain, and struggle — not simply a reduced speed. In context, the smaller boy isn't just moving slowly; he is barely managing to keep up, laboring against his physical limitations. Answer B captures this perfectly: translating aegre as "slowly" strips away the sense of exertion and hardship, turning a word about struggle into a neutral comment about pace. Answer A is wrong on two counts: aegre and lente are not synonyms. Lente means "slowly" in a purely descriptive, pace-related sense with no implication of difficulty. Calling them identical ignores everything that makes aegre distinctive. Answer C tempts you by introducing the related adjective aeger's emotional connotations (troubled, grieved), but aegre as an adverb does not primarily mean "reluctantly" or signal psychological resistance — it signals physical/practical difficulty. The smaller boy struggles because he can't keep up, not because he won't. Answer D is a grammatical trap: aegre is unambiguously an adverb here, modifying the verb sequebatur. Adverbs in Latin don't take noun agreement endings, so there's no basis for reading it as an adjective. Study tip: When you see aegre, think "with difficulty/barely" — never let lente's meaning bleed into it. Keeping synonyms cleanly separated is a recurring challenge on Latin-2 vocabulary questions.

Question 8

A student translates the phrase vir acerrimus as 'a very sharp/keen man' and the phrase acerrime pugnavit as 'he fought very keenly/fiercely.' The student then claims both uses derive from the same base adjective. Which analysis is most accurate regarding the morphology and semantics at work?

  1. 'Acerrimus' derives from the adjective 'acer,' but 'acerrime' derives from the unrelated root 'acerbus' (harsh, bitter) and should be translated as 'harshly' — the spelling resemblance between the two forms is coincidental and students must be careful not to conflate them
  2. Both forms derive from 'acer,' but the student's translations are inaccurate: 'acerrimus' must be rendered only as 'most sharp' and 'acerrime' only as 'most keenly,' since Latin superlatives exclusively carry the absolute 'most' sense and the 'very' rendering is never an acceptable alternative in standard translation practice
  3. Both forms derive from 'acer' (sharp, keen, fierce). 'Acerrimus' is the superlative adjective (nominative masculine singular), and 'acerrime' is the superlative adverb formed by replacing the '-us' ending with '-e'; the student's morphological claim is correct and both translations are contextually appropriate (correct answer)
  4. Both forms correctly derive from 'acer,' but 'acerrime' is the comparative adverb rather than the superlative, because Latin comparative adverbs are formed by adding '-e' to the adjective stem, while true superlative adverbs are formed differently and would end in '-issime' rather than '-errime'
Explanation: When you encounter Latin superlative forms, your first instinct should be to identify the base adjective and then trace how both the superlative adjective and superlative adverb are built from it — that's exactly what this question tests. The adjective acer (sharp, keen, fierce) belongs to a special group that forms its superlative by doubling the final consonant of the stem and adding -rimus: acer → acerrimus. This is the nominative masculine singular superlative adjective, meaning "very sharp" or "most sharp." To form the superlative adverb, Latin simply replaces the -us ending of the superlative adjective with -e: acerrimus → acerrime, meaning "very keenly" or "most keenly." Both forms trace directly back to acer, so the student's morphological claim is correct, and answer C accurately captures this. Answer A is wrong because acerrime has nothing to do with acerbus. These are entirely separate words; the spelling similarity might look tempting, but the adverb acerrime is straightforwardly derived from acerrimus. Answer B is wrong because Latin superlatives can legitimately carry either the "most" sense (comparative superlative) or the "very" sense (absolute superlative), depending on context. Insisting on only one rendering is an oversimplification that will actually hurt your translation accuracy. Answer D is wrong because it confuses comparative and superlative adverb formation. The -errime ending is the superlative, not the comparative. Latin comparative adverbs end in -ius, not -e. As a study tip, memorize the -er adjective pattern (acer, asper, pulcher) forming superlatives with -errimus, and remember: superlative adverb = superlative adjective minus -us, plus -e.

Question 9

Cicero dicit: 'Vir bonus semper verum dicit, numquam falsum. Ita vita honesta est.'

The passage presents a moral claim using two adverbs in opposition. Which of the following best describes the logical relationship the adverbs 'semper' and 'numquam' establish, and how does 'ita' function in the concluding sentence?

  1. 'Semper' and 'numquam' are both temporal adverbs that locate the good man's truthfulness in an indefinite past time; 'ita' introduces a result clause meaning 'so that,' making the final sentence subordinate to the preceding claims
  2. 'Semper' (always) and 'numquam' (never) establish a contrast between frequent and infrequent actions; 'ita' functions as an intensive adverb meaning 'very' to strengthen the claim that the honest life is extremely admirable
  3. 'Semper' (always) and 'numquam' (never) establish a universal positive and universal negative claim about the good man's behavior; 'ita' (thus/in this way) then signals that the honest life is the logical consequence of those two absolute commitments (correct answer)
  4. 'Semper' and 'numquam' function as correlative adverbs requiring a paired conjunction such as 'et...et' to be grammatically complete; 'ita' compensates for this missing conjunction by acting as an adverbial connector
Explanation: When analyzing Latin adverbs and sentence connectors, ask yourself two questions: what logical work are the adverbs doing together, and how does the following clause connect to them? Semper ("always") and numquam ("never") are both temporal adverbs, but their power here is logical, not just chronological. Semper makes a universal positive claim — the good man tells the truth in every instance — while numquam makes a universal negative — he never tells a falsehood. Together, they cover the entire logical space of the good man's behavior, leaving no exceptions. This is absolute moral commitment expressed through complementary opposites. Then ita ("thus" or "in this way") introduces the concluding sentence as a logical consequence: because the good man always tells the truth and never lies, his life is therefore honorable. Answer C captures this perfectly. Answer A misreads both adverbs and the connector. Semper and numquam describe timeless, universal behavior — not an indefinite past. And ita here is not a subordinating conjunction introducing a result clause (ita...ut would do that); it's a standalone adverb summing up the logical conclusion. Answer B confuses degree with frequency. Semper doesn't mean "frequently" — it means always, without exception. And ita does not mean "very"; that intensive function belongs to words like valde or magnopere. Answer D invents a grammatical rule that doesn't exist. Semper and numquam are independent adverbs and require no correlative pairing to be complete. Ita fills no grammatical gap. Study tip: When you see ita standing alone at the start of a Latin sentence, treat it as a logical signpost meaning "thus" — it signals a conclusion being drawn from what came before.

Question 10

In classical Latin, the adjective felix and the adjective beatus are sometimes both translated as 'happy' in English. A Latin 2 student must choose between them to complete this sentence: Post longum bellum, cives   erant quod pax tandem aderat. Which form and word best fills the blank, and why is the alternative 'happy' adjective less appropriate here?

  1. beati — 'beatus' is more appropriate because classical authors never use 'felix' with animate subjects such as 'cives'; 'felix' is restricted to describing inanimate objects and abstract concepts like luck or fate
  2. beati — 'beatus' is the only correct choice because it is a first/second declension adjective agreeing with 'cives' in the nominative plural, while 'felix' is a third declension adjective and cannot modify a masculine noun
  3. felices — 'felix' must be used here rather than 'beatus' because 'beatus' is exclusively a past participle used only in passive constructions and cannot function as a standalone predicate adjective
  4. felices — 'felix' (fortunate/lucky) suits the context because the citizens' happiness is linked to a favorable external circumstance (peace arriving), whereas 'beatus' more often describes an inner, morally grounded contentment (correct answer)
Explanation: When two words share a translation in English, the real test is whether you understand their distinct connotations in the original language. Latin 2 questions like this one aren't just about grammar — they're about choosing the word that fits the situation, not just the surface meaning. Here, the sentence reads: "After a long war, the citizens were   because peace had finally arrived." The citizens' happiness is directly caused by an external, fortunate event — peace showing up. This is precisely the territory of felix: it carries the sense of lucky, fortunate, favored by circumstance. Classical authors reach for felix when happiness flows from outside conditions, favorable outcomes, or good fortune. Beatus, by contrast, describes a deeper, inward contentment — the happiness of a philosopher, a blessed soul, or someone at peace within themselves. Since the citizens are reacting to an external event (pax tandem aderat), felices is the natural, contextually appropriate choice, making D correct. A is wrong because its grammatical claim is simply false — felix is used extensively with animate subjects, including people, throughout classical literature. B contains a real grain of truth (both beati and felices are grammatically possible — felix is third-declension and beatus is first/second — but felix absolutely can modify masculine nouns; felices is the correct nominative plural agreeing with cives). The error is claiming grammar alone disqualifies felix. C is wrong because beatus is not exclusively a past participle — it functions freely as a standalone predicate adjective in classical Latin. Your study tip: whenever two synonyms appear, ask "is this happiness caused by external fortune or internal virtue?" That distinction almost always points you to felix vs. beatus.