Change of Voice - Verbal and Reasoning

Directions to SolveIn the questions below the sentences have been given in Active/Passive voice. From the given alternatives, choose the one which best expresses the given sentence in Passive/Active voice.
Q1:

Who is creating this mess?

A Who has been created this mess?

B By whom has this mess been created?

C By whom this mess is being created?

D By whom is this mess being created?

ANS:D - By whom is this mess being created?

No answer description is available.