Question

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? choose 1 answer: a requiring b demonstrating c complaining d pretending

Explanation:

The text states that a team of researchers proved the previous idea wrong. The word "demonstrating" means showing or proving something. "Requiring" means needing, "complaining" means expressing dissatisfaction, and "pretending" means acting as if something is true when it's not. Since the researchers showed (proved) there are three species, "demonstrating" is the correct word.

Answer:

B. demonstrating