In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.
He had transported all his equipment to his factory.

Options

A. All his equipment are transported to his factory by him.
B. All his equipment were transported to his factory by him.
C. All his equipment have transported by him to his factory.
D. All his equipment had been transported by him to his factory.

Answer

D