Digital PSAT Reading and Writing Practice Question 51: Answer and Explanation

Question: 51

Some bat species have altered their mating and living habits to help protect themselves, and it is through observation of these adaptations that researchers ________, so preservationists can make the necessary interventions.

Which choice is most logically inserted in the underlined portion of the sentence?

• A. have decided how the species are thriving
• B. are learning which species are in the most danger
• C. are finding the preferred cultural associations of bats
• D. may locate major bat predators

Correct Answer: B

Explanation:

(B) Consider what immediately follows the insertion point-"so preservationists can make the necessary interventions." Preservationists would naturally be most interested in helping those species in need of intervention because the species were in danger of becoming extinct. So the statement are learning which species are in the most danger most logically connects to this. Choice (A) is the opposite of what is needed. Choice (C) is irrelevant. Even though choice (D) relates a bit to the information that follows, it does not give as strong a connection as choice (B) does. Preservationists would more likely find information about which bat species most need help more useful than information about bat predator locations.