Explanation:

- Malik Kafur was a prominent commander in the army of Alauddin Khilji.

- Alauddin Khilji was the second ruler of the Khilji dynasty and had significant ambitions of expanding his empire.

- He sent Malik Kafur to conquer South India, which led to successful campaigns extending the empire's boundaries.

- Khusrau Khan was not associated with Malik Kafur's campaigns in South India. He rose to power later.

- Qutb-ud-Din Mubarak Shah was the last Khilji ruler, and Malik Kafur was executed before his reign.

- Jalal-ud-Din Khilji was the founder of the Khilji dynasty but was prior to the campaigns led by Malik Kafur.