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.

The Bear Gulch Limestone Formation (A)in Montana is a sequence of bedded limestone layers (B)up to 90 feet thick (C)and approximately 8 miles (D)across. (E)No error

(A)
(B)
(C)
(D)
(E) ?

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