If someone succumbs, it means they yield or surrender; an example is succumbing in battle.

Ameliorate means to make better or improve.

"Usurp" means to take without permission. "Truncate" is incorrect because it means to reduce, "donate" means to give away, and abolish means to get rid of. "Seize" is the only possible answer choice, which means to take.

"Obviate" and "preclude" both mean to make unnecessary. "Pulverize" means to smash or destroy. "Quip" means to make a witty remark or retort. "Ruffle" means to upset or irritate. "Scrutinize" means to examine closely. 

"Jeopardize" and "imperil" both mean to put at risk or in danger. "Jettison" means to eject or expel. "Garner" means to collect or accumulate. "Incite" means provoke or inspire to action. "Warp" means to distort or cause to be misshapen. 

The word “eschew” is a rather strange English word meaning to avoid the use of (something) or to forgo the use of. For instance, it would be used in a sentence like, “Since Harold had allergic reactions to all kinds of strawberries, he chose to eschew them entirely, rather than risk any contact with the potentially deadly fruits.”

The crucial thing to realize when approaching this problem is that "ease" can function either as a noun or as a verb. We have both nouns and verbs listed in the possible answer choices, so it's important to consider each of the word's different meanings. As a noun, "ease" means a lack of difficulty; neither "angst" nor "intuition" match that meaning. As a verb, "ease" means lessen the severity of something bad. As "mitigate" means cause to become less severe, it is the best answer choice.

"Mitigate" and "assuage" both mean to diminish or lighten. "Aggravate" means to annoy or irritate. "Rouse" means to wake or stimulate. "Anodize" means to gild or encrust. "Inure" means to accustom or acclimate. 

"Usurp" and "supplant" both mean to take over. "Recant" means to take back something said. "Relinquish" means to give up or let go. "Repine" means to complain or fret. "Stipulate" means to decide on conditions.

"Sustain" is a verb with a variety of meanings, including "strengthen or support physically or mentally," "cause to continue or be prolonged for an extended period or without interruption," "undergo or suffer something unpleasant, especially an injury," or "uphold, affirm, or confirm the justice or validity of." Neither "crumble" nor "break" can be the correct answer because each word is an antonym of the second meaning of "sustain," "cause to continue or be prolonged for an extended period or without interruption." "Suffer," however, is synonymous with the third meaning of "sustain," "undergo or suffer something unpleasant, especially an injury." Because "suffer" is the answer choice closest in meaning to "sustain," it is the correct answer.