The correct option is C Westland Wapiti
On 1 April 1933, the first unit of the Indian Air Force was formed at Drigh Road, Karachi with a compliment of four Westland Wapiti aircraft. The single flight expanded into two, then three flights to become a full fledged squadron. Over the course of the decade, several Wapitis passed through its hands. The advent of the Second World War saw the setting up of training facilities for Indian pilots, and the raising of several flights - for Coastal Defence and for Anti-Aircraft Co-operation. By the time the last of the Westland Wapitis stopped flying in 1943, 67 Wapitis had passed through the hands of the IAF and training units.