Clarify means to make something clear. To further help you, approximate means to roughly guess; a diagram is a picture or visual representation of information; revert means to go back; compare means to talk about the good and the bad sides of two or more things.

Assert means take control or insist. To further help you, accomplish means succeed; outlaw means criminal; condemn means ban; antagonize means make an enemy out of. 

To demonstrate something means to show something. To further help you, achieve means succeed in doing something; reassure means comfort; elicit means draw out a reaction.

"Imitate" means mimic or copy. To further help you, "mock" means make fun of; "suffocate" means prevent from breathing; "retrieve" means to go get something; someone who is "thoughtful" is deep in thought or very considerate of others. 

“Personify” means to be the perfect representation of an idea, so the correct answer is “represent.” To provide further help, “monetize” means to convert from debt to money, to make something legal tender; “tender,” in this context, is another name for currency; “diagnose” means identify an illness or cause of something; “alleviate” means make better; “induce” means forcibly cause. 

The prefix "inter-" means between or with, so the word “interact” means work with someone else, talk with someone else, or communicate with someone else. None of the other answer choices are close in meaning to "interact": “inculcate” means instill ideas through teaching; “administer” means give a dosage of a drug or manage; a “referendum” is an issue decided by a popular vote of the people; and “placate” means pacify or say the right things to calm someone down.

The word "comprehend" literally means to grasp completely, as though you were grasping a person in an embrace or a hug. The "-prehend" portion is found in the word "apprehend," which means to snatch, as when a police officer "apprehends" a thief. The "com-" prefix can mean with, among, or even around.

Someone might ask you, "Did you comprehend the lesson?" This question means, "Did you understand the lesson?" Another way to put it would be, "Did you 'wrap your mind around it'?" This latter expression actually shows a bit of what is literally meant by "comprehend," though the better meaning is merely to understand completely. The only option that fits this is "understand." To "educate" might lead someone to comprehend something, but "educating" is not the same as "comprehending." "Educating" hopefully leads to comprehension. It is not, however, the same thing as it.

"Admit" means to confess.

"Ennumerate" is a verb that means to mention all of the items in a category individually, so "list" is the correct answer, because "list," when used as a verb, also means to mention all of the items in a category individually. None of the other answer choices are close in meaning to "ennumerate": "spoil" means to go rotten, "grumble" means to complain quietly; and "categorize" means to assign people or things to categories.

To "bewilder" someone means to confuse them. "Perplex," which also means confuse, is the best match for "bewilder," because both words mean confuse.