Writing > Identifying Sentence Errors

The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence contains no error, select choice E.

Beluga whales, A.which are also called sea canaries B.because of their high-pitched chirps and gregarious natures, are the only animals C.known mimicking the sounds D.of human speech spontaneously. E.No error

(A)

(B)

(C)

(D)

(E) ?

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