The correct answer is A. Bharat Electronics Limited (BEL).
Bharat Electronics Limited (BEL) is an Indian state-owned electronics and defence manufacturing company. It is headquartered in Bangalore, Karnataka. The company was founded in 1954 and is under the ownership of the Ministry of Defence, Government of India. BEL manufactures a wide range of products for the Indian Armed Forces, including low and high power communication equipment like radius.
Godrej Shipyard Limited (GSL) is an Indian shipbuilding company. It is headquartered in Mumbai, Maharashtra. The company was founded in 1964 and is under the ownership of the Godrej Group. GSL manufactures a wide range of ships, including warships, submarines, and commercial vessels.
Bharat Dynamic Limited (BDL) is an Indian defence manufacturing company. It is headquartered in Hyderabad, Telangana. The company was founded in 1964 and is under the ownership of the Ministry of Defence, Government of India. BDL manufactures a wide range of ammunition, including artillery shells, rockets, and missiles.
None of the above options are correct.