Read the sentence to find out whether there is an error in it or not. 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.

After the humiliating incident (1)/ he hanged his head down(2)/ in shame (3)/ in the office. (4)/ No Error (5)