In the following questions, a sentence has been given in Active/Passive Voice. Out of the four alternative suggested, select the one which best expresses the same sentence in Passive/Active Voice.

She is putting in many hours of work.

A. Many hours of work will be put in by her. .

B. Many hours of work is being put by her.

C. Many hours of work would be put in by her.

D. Many hours of work are being put in by her.

Please do not use chat terms. Example: avoid using "grt" instead of "great".