1

Problem

Scientists previously thought that all electric eels belong to a single species, but a team of researchers led by zoologist C.David de Santana proved this idea wrong by____that there are in fact three distinct species of electric eels.

Which choice completes the text with the most logical and precise word or phrase?

2

Clue

The details and facts help to draw the main idea of the passage.

3

Sumup

Please summarize Problem, Hint, Clue

Choices

5

Choice-A

Choice A is incorrect. Pretending that there are three species of electric eel might be a fun game for marine biologists, but it wouldn’t prove the existence of more than one species.

Wrong pretending

6

Choice-B

Choice B is incorrect because complaining would not prove anything about electric eels. Therefore, de Santana could not have disproved the idea of only one species of electric eel by merely complaining about it.

Wrong complaining

7

Choice-C

Choice C is incorrect. “Requiring” means “needing.” It wouldn’t make sense to say that de Santana “needed” there to be three distinct species of electric eel.

Wrong requiring

8

Choice-D

Choice D is correct because “demonstrating” means “showing,” and the text explains how de Santana disproved the previous belief in a single species of electric eel by showing that three distinct species actually exist.

Correct demonstrating

9

Step

Correct sentence - The choice that completes the text with the most logical and precise word or phrase - demonstrating

10

Answer

Option

D

11

Sumup

Please summarize choices