The correct option is C Military camp
Qila Mubarak in Bathinda was a Military camp. Qila Mubarak, is a historical monument in the heart of the city of Bathinda in Punjab, India. It has been in existence from 1100-1200 AD in its current place and is the oldest surviving fort in India. When Babur came in India for the first time, he came here with cannons. Four of them are here in this fort that are made up of an alloy of silver, gold, copper and iron.