A "transgression" is a sin or a violation of a law.

"Malice" is a desire to inflict pain, injury, or suffering on another; therefore, "spite," which means ill will or desire to harm, is the best answer choice.

"Malice" is a desire to inflict pain, injury, or suffering on another; therefore, "spite," which means ill will or desire to harm, is the best answer choice.

A "transgression" is a sin or a violation of a law.

The word hue is used to describe a shade of a color. For clarification, luminous means glowing; mayhem means chaos; vie means to compete; fey means supernatural or irrational.

"Antagonist" is an antonym of "protagonist." Whereas a "protagonist" is a hero, an "antagonist" is a villain. The answer choice that is closest in meaning to "villain" is “adversary," which means enemy or opponent.

"Chemists" and "alchemists" are people who work with chemical processes. Both words also share a root: chem-. The other words may also describe kinds of people, but they are not at all related to the word chemical.

A "firebrand" is a person who incites a revolution or some great change, so "radical," which can mean a revolutionary, is the correct answer. A "professor" is a person who teaches students at a college or university. An "explorer" is a person who travels and discovers new lands. A "voyage" is a long trip, usually made by ship. A "continent" is a very large body of land.

A "ruffian" is a "hoodlum," a troublemaker or a delinquent.

None of the other words are synonymous with ruffian:

"Spectator" means a bystander or someone who views an event or a spectacle.

"Pontiff" means the pope, or the leader of the Catholic Church.

A "scribe" is someone who makes hand-written copies of texts. Scribes still exist, but were more common in the time before the printing press was invented.

A "cherub" is a very cute baby, or a chubby angel child with wings.

"Marauder" is a plunderer, or someone who raids people for profit.

"Offspring" means child of someone, or progeny.

"Connoisseur" means someone who is an expert in arts or matters of taste.

"Exemplar" is someone who is imitated.

"Jockey" is a professional horse racer.