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.
The control room is notifying police that three prisoners have escaped.1
Police are being notified by the control room that three prisoners have escaped.
2
Police are notified that three have escaped by the control room.
3
Police have been notified that three have escaped by the control room.
4
Police is notified that three have escaped by the control room.