"Plagiarize" means copy someone else's work without giving them appropraite credit for it, so "copy" is the best answer choice. None of the other answer choices are close in meaning to "plagiarize": "quench" means satisfy a thirst or put out fire with a liquid; "ransack" means steal and damage an building or group of buildings; "scold" means chide or berate; and "seethe" means boil, bubble, or be angry but try not to show it.

To "negate" something, like a claim, means to invalidate it, cancel it out, or deny that it exists. So, "invalidate" is the correct answer.

The word "elucidate" means make clear. The best choice is "clarify" because it shares the same definition as "elucidate." Considering the other choices, "silly" means foolish, "modest" means free from boastfulness, and "deny" means reject.

"Dictate" means to give orders. This is simliar to "demand."

To "comprehend" information is to understand or make sense of it. If you find that a certain school subject is extremely easy, you likely "comprehend" most of the facts and explanations given in the class. "Understand" is the clear choice here. "Baffle" and "confuse" each related to not being able to understand something, so neither can be the correct answer. "Impoverish" is a verb that means make poor; therefore, it is not a relevant answer.

"Relinquish" means surrender or begrudgingly give an object to someone else, so the answer choice closest in meaning to "relinquish" is "renounce," a verb that means forswear or give something up. Considering the other choices, none are close in meaning to "relinquish": "apply" means put to use or request in a formal application; "excel" means be extremely good at; and "give" means hand something to someone or transfer an object to someone else's possession, often with no expectation of reciprocal gain.

When an action is "prohibited," it is made illegal or otherwise forbidden by an authority (the law, your parents, a teacher, etc.). It is clear that "forbid" is the proper synonym. Of the remaining answer choices, "allow" is an antonym, since an activity that is allowed is not forbidden. "Condone" similarly refers to the acceptance of a behavior, though it is generally used in regard to behaviors that are considered negative. Finally, to "neglect" a person or activity is to ignore or abandon it, so this term is also incorrect.

The definition that is closest in meaning to "grant" is "allow," since "grant," when used as a verb, means give or permit.

“Empower” is a verb that can mean either “to give power to” or “make a person stronger and more confident.” That means that “prohibit” cannot be the correct answer, because “prohibit” means “formally forbid,” making it an antonym, not a synonym, of “empower.” “Authorize,” however, is a verb that means “give official permission,” and because “authorize” is the answer choice closest in meaning to “empower,” “authorize” is the correct answer.