The battle tanks designed and developed by the Defence Research and Development Organization in collaboration with Heavy Vehicles Factory and Bharat Heavy Electricals Limited are

The battle tanks designed and developed by the Defence Research and De

1.	The battle tanks designed and developed by the Defence Research and Development Organization in collaboration with Heavy Vehicles Factory and Bharat Heavy Electricals Limited are
A.	Vijayanta
B.	T-55 and T-72
C.	Arjun
D.	All of the above
Answer» D. All of the above