Direction: Select the option that is the (Active/passive) form of the given sentence.
Who has broken the chair?

Options

A. By whom had the chair been broken?
B. By whom has the chair been broken?
C. By whom was the chair been broken?
D. By whom is the chair been broken?

Explanation

(b) By whom has the chair been broken? (Correct) (a)By whom had the chair been broken? (Tense has changed) (c)By whom was the chair been broken? (Tense has changed) (d)By whom is the chair been broken? (Tense has changed