The correct option is
C Great Indian Bustard
A. Passenger Pigeon is an extinct bird.
B. Dudo is also an extinct bird.
C. The Great Indian Bustard is a Bustard found on Indian subcontinent. It has a horizontal body and long bare legs, giving it like an ostrich like appearance. This bird is among the heaviest of the flying bird. It is critically endangered bird.
D. A Zebu, sometimes known as indicine cattle or humped cattle, is a species or subspecies of domestic cattle originating in South Asia.
So, the correct answer is 'Great Indian Bustard'.