Option b is the correct answer. In 1527, Babur ordered a Jehad/Jihad against Rajputs at the battle of Khanwa. He declared the forthcoming battle a Jehad as his soldiers were facing a non-Muslim army for the first time ever. He said, this was their chance to become either a Ghazi (soldier of Islam) or a Shaheed (Martyr of Islam). He adopted the title of Ghazi after the victory.