When someone "surpasses" something such as a world record in running, it means they "exceed" the previously set limit or expectation. The other answer chocies are as follows: to "summit" is to reach the peak; to "regress" is to go backwards; to "undermine" is to weaken; and to "neutralize" is to counteract.

“Redoubtable” is an adjective that means “formidable” when referring to a person, so we need to pick out an answer choice that means something like “formidable.” That means that “pathetic” cannot be the correct answer, because “pathetic” means “arousing pity,” making it a near antonym, not a synonym, of “redoubtable.” “Daunting,” however, is an adjective that means “intimidating,” and because “daunting” is the answer choice closest in meaning to “redoubtable,” “daunting” is the correct answer.

The suffix "-cide" means related to killing and the prefix "pest-" means related to pests, such as insects or rats. In this instance, since there is no option for “rat killer” the correct answer is “insect killer.”

The answer choice closest in meaning to "formulate" is "create." For example, if you "formulate" a plan, it means that you create a plan.

The prefix "se-" means apart or away, so “segregate” means keep apart. 

“Laughable” is an adjective that means “so ridiculous as to be amusing,” so we need to pick out an answer choice that means something like “ludicrous.” That means that “sensible” cannot be the correct answer, because “sensible” means “having good sense,” making it an antonym, not a synonym, of “laughable.” “Ridiculous,” however, is an adjective that means “absurd,” and because “ridiculous” is the answer choice closest in meaning to “laughable,” “ridiculous” is the correct answer.

The prefix equi- means same or equal. A situation that is “equitable” is one that is the same for everyone, equal and fair. To provide further help, “fragile” means easily broken; “ceremonial” means done for reasons of tradition or ceremony.

"Abominable" is an adjective that can mean "causing moral revulsion" or "very bad or unpleasant." So, we need to pick out an answer choice that means something like "very bad." Because "detestable" means "deserving intense dislike," it is the answer choice closest in meaning to "abominable" and the correct answer.

The Latin root "clar" means clear, so “clarify” means to make clear. “Obscure” means hide when used as a verb; “puzzle” means confuse; "contort" means twist out of shape; and "defy" means purposely disobey a figure of authority.

The prefix "con-" means together, so it makes sense that to “confer” something means to bring, "award," or present that thing to someone in particular. “Surmise” means guess or suppose something to be true; “foster” means encourage or assist; “undermine” means reduce the importance of, subvert, erode, or weaken; and “fuse” means weld together, join, or combine.