Question

are proven to be less intelligent than once thought
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Answer 1

Answer:

Explanation: B

It is clear from the passage that dolphins ----.

A) don't want to be with us as much as we want to be with them

B) are proven to be less intelligent than once thought

C) have a reputation for being friendly to humans

D) are the most powerful creatures that live in the oceans

E) are capable of learning a language and communicating with humans