Directions (51-55): In these questions, the sentence has a blank indicating that something has been omitted. Choose the word that best fits the meaning of the sentence as a whole.
OPEC is a group of 12 nations whose members ........... approximately 40 percent of the world's oil requirements.

A) comprise

B) including

C) estimate

D) delivers

E) supply

Correct answer:
A) comprise



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