Read the sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. The number of that part is the answer. If there is no error, the answer is (5). Ignore errors of punctuation, if any.

Terrorist investigators commonly use tactics of (A)/ disinformation by lying about the evidence they (B)/ have found or witnesses they have been(C)/ interviewed in order to get a confession. (D)/ No error (E)