In the following you will find sentences, part of which are `"bold"`. Compare the bold part of each sentences with the expressions (a) ,(b) and (c) given below.Choose the expression which is an improvement upon the bold part. If none of the three expression improves the sentences, then your answer is (d).
The teacher asked the intruder `"who was he and why was he"` occupying his chair.

Options

A. who he was and why he was
B. who he was and why was he
C. who he had been and why he had been
D. no improvement

Answer

A