"Rectify" means to fix or to correct. For example, one might write, "After the mother had yelled inappropriately at her child, she apologized, hoping to rectify the sitaution." So, "correct" is the correct answer.

"Exploit" is a verb meaning to take advantage of. For example: "The needs of our large machines and large appetites cause us to EXPLOIT our natural resources for material gain."

"Extract," when used a verb, refers to the action of removing something. To "discover" something is to find it. "Flatter" is a verb referring to the action of complimenting or praising someone.

"Bombard" is a verb synonymous with besiege, harass, or attack. One might "assist" someone with a bombardment, but the two are not close to synonymous, if you "bombard" a city you are destroying, not assisting it. A successful bombardment may help an army "prevail" in a battle or war, but it is not directly synonymous.

To "spearhead" something, like a project, means to lead it. Imagine the tip of a spear piercing its target; the rest of the spear follows the head's lead. So, "lead" is the correct answer.

"Subject to" means "cause or force to undergo (a particular experience of form of treatment)." So, we need to pick out a verb that means something like "cause or force to undergo something." While someone might teach a certain subject, "teach" does not mean the same thing as "subject to," and considering how someone might "teach a subject" uses "subject" as a noun, not a verb. "Put through," however, is close in meaning to "cause or force to undergo," and because "put through" is the answer choice closest in meaning to "subject to," "put through" is the correct answer.

The word "inhibit" comes from Latin roots that mean to have or to hold. The word "habit" comes from this same root. A "habit" is s_omething that we have or hold on to in our character_. Also, the word "habit" refers to the clothing worn by monks in certain religious orders in the Catholic church. This comes from the Latin "habitus," meaning dress or attire (among many other meanings).

When we "inhibit" something, we prevent it from happening. For instance, you could say, "Being drunk inhibits a person's ability to drive or even to think clearly." Likewise, someone could say, "Being illogical inhibits a person's ability to argue in a convincing manner." Thus, the best option here is "hinder", which in general indicates an action that makes things difficult for someone. When we hinder a person's actions, we inhibit his or her actions.

The word "abet" is likely rarely used by you; however, perhaps you have heard the expression, "aid and abet." For example, in a movie, someone might be accused of "aiding and abetting the enemy." This basically means aiding and encouraging the enemy to do wrong. The only option that expresses this idea of aiding or encouraging is the word "support."

"Usurp" is a verb that means "take a position of power or importance illegally or by force." While "oversee," "approve," and "mandate" might all look like potentially correct answers because they all have to do with positions of power, only "seize" ("take hold of suddenly and forcibly" or "take forcible possession of") is close in meaning to "usurp," so "seize" is the correct answer.

"Resign" means give up or quit, so "quit" is the correct answer.

To "instill" means to impart gradually. Therefore, "impart" is the synonym.