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.

　　The largest European type of newt grows to about seven inches, while the largest American type, the California newt, it grows to about six inches. No error

　　(A) largest

　　(B) type of

　　(C) but

　　(D) while

　　(E) No error

　　Explanation

　　The error in this sentence occurs at (D), where there is an unnecessary pronoun. The pronoun "it" should be deleted so that the comparison is clear: one type of newt "grows to about seven inches," and the other "grows to about six inches."

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（编辑：马菲）