The question sentence has been divided into 5 parts, from (A) to (E).  Any part of the sentence carries an error. Find the error based on Adjective. If there is no error,  mark 'Option E' i.e. No error.

This is the more difficult question (A) I have ever solved within ten minutes. I had no choice, it was a (B) long answer question that had to be (C) solved or the rest of the paper would not be considered for evaluation.(D) No Error (E)