"Snare" is a word that can be used as either a noun or a verb, but because all of the answer choices can be used as verbs, we will need to consider "snare" as a verb. When used as a verb, "snare" means to trap or to catch and usually refers to trapping an animal, so "trap" is the correct answer.  None of the other answer choices are close in meaning to "snare" or "trap": "prosper" means succeed or flourish. "Contaminate" means pollute; "falsify" means mislead or show that something is false; and "research" means to study or investigate.

The verb "cascade" means (speaking of a liquid) to fall heavily. Additionally, "thrive" means to grow, to flourish, to develop well; "determine" means figure out, decide. 

The verb "matriculate" means enroll in a college class, sign up for university. Additionally, "abhor" means detest, hate whereas "adore" means love, cherish; "egress" means place of exit and "ingress" means place of entrance. 

The verb "taper" means to narrow, to diminish, to reduce or to cause to reduce. Additionally, "elongate" means make or become longer; "deprecate" means dislike and criticize; "supplant" means replace; "aggrandize" means increase the power and wealth of.

The verb "parry" means to deflect something thrown at you and cause it to go in a different direction. Additionally, "intercept" means get in the way, or take control, of something so as to prevent it from getting to it's intended destination; "abridge" means shorten; "anoint" means consecrate, ordain, make holy or sacred; "incapacitate" means render no longer a threat, prevent from functioning.

The verb "burgeon" means to grow, to "thrive," to flourish. Additionally, "accrue" means increase in value; "advocate" means speak out in support of; "digress" means stray from the main point; "domesticate" means make a pet, tame.

The verb "bolster" means to "reinforce", to add to in order to strengthen. Additionally, "supplicate" means urge and entreat, humbly plead and beg for; "masticate" means chew; "embezzle" means steal money which was given to one in good faith, steal from one's own company; "brandish" means flourish, (of a weapon or other object) wave about.

The verb "corral" means to herd, to forcefully gather together and confine within. This is closest in meaning to "enclose." Additionally, "entice" means tempt, lure; "enliven" means make more entertaining or energetic; "enumerate" means make a list of; "enunciate" means pronounce clearly and correctly.

The verb "deteriorate" means to worsen over time, (of a condition) to become worse. Additionally, "replicate" means copy, reproduce; "allude" means hint at, indicate is true.

The verb "dawdle" means to wait behind or to stay in one place and take one's time in leaving, so "linger" is the best answer, as it also means to remain in a place longer than expected to or to delay leaving a place past a expected time one was expected to leave. "Amplify" means make louder; "illustrate" can mean draw, but it can also mean show, depict, or demonstrate; "purport" means claim, as in the phrase "purport to be"; and "eradicate" means completely destroy.