Read the sentence to find out whether there is any error in it or not. The error, if any, will be in one part of the sentence. The number of that part (which has the error) is the answer. If there is no error, the answer is (5). Ignore errors of punctuation, if any.

The group alleges at that (A)/ the president favours oil (B)/ interests over those of (C)/ the people in the area. (D)