Identify the part of the sentence that has an error.

(A) Neither
(B) the mouse
(C) nor the cat
(D) were
(E) caught.

Choose the correct answer from the options given below:

(D) Only

The correct answer is Option (3) - (D) Only

In the sentence, the error lies in the use of "were" after "Neither...nor." The subject-verb agreement rule states that when "Neither...nor" is used, the verb should agree with the nearest subject. In this case, the nearest subject is "the cat", which is singular. Therefore, "were" should be replaced with "was."

Corrected sentence:
Neither the mouse nor the cat was caught.