Select the correct Passive Voice form of the sentence.I have booked the tickets for our forthcoming trip to Mumbai.

• A. The tickets for our forthcoming trip to Mumbai are being booked by us.
• B. I had been booking the tickets for our forthcoming trip to Mumbai.
• C. Booking is done by me of tickets for our forthcoming trip to Mumbai.
• D. The tickets for our forthcoming trip to Mumbai have been booked by me.