Select the correct passive form of the given sentence.
The prisoners have made these paintings.

Options

A. These prisoners have been made by the paintings
B. These paintings were made by the prisoners
C. These paintings are made by the prisoners
D. These paintings have been made by the prisoners.

Explanation

(d) These paintings have been made by the prisoners. (Correct) (a) These prisoners have been made by the paintings . (Incorrect Subject and Object) (b) These paintings were made by the prisoners. (Tense has changed) (c) These paintings are made by the prisoners. (Tense has changed)