Step 1: Historical context.
The Second Battle of Panipat (5 November 1556) was fought between the Mughal forces of Akbar (led by his regent Bairam Khan) and the army of Hemu (Hemu Vikramaditya), the Afghan general who had captured Delhi.
Step 2: Evaluate options.
(A) Hemu: Correct—Hemu was defeated and killed in this battle, securing Mughal rule.
(B) Baji Rao: Incorrect—18th-century Maratha leader, unrelated to this battle.
(C) Man Singh: Incorrect—he was a Mughal general serving Akbar, not his opponent.
(D) None of them: Incorrect, as (A) is correct.
Step 3: Conclusion.
Akbar’s forces defeated Hemu at the Second Battle of Panipat.