A sentence has been given in Active/Passive voice. Out of the four alternatives suggested

A sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select one which best expresses the same sentence in passive/active Voice.

A bilateral military exercise has been conducted by India and Shrilanka in Rajasthan.

A.            They have conducted a bilateral military exercise in Rajasthan.

B.            India and Shrilanka have been conducted a bilateral military exercise in Rajasthan.

C.            India and Shrilanka have been conducting a bilateral military exercise in Rajasthan.

D.            India and Shrilanka have conducted a bilateral military exercise in Rajasthan.