Select the correct passive form of the given sentence.She corrected fifty questions in one hour (a) Fifty questions have been corrected by her in one h our (b) Fifty questions were being corrected by her in one hour (c) Fifty questions were corrected by her in one hour (d) Fifty questions are corrected by her in one hour.

Options

A. Fifty questions have been answered by her in one hour
B. Fifty questions were being answered by her in one hour
C. Fifty questions were answered by her in one hour
D. Fifty questions are answered by her in one hour.

Answer

D