Explanation:

- The Khilafat Movement was primarily a campaign by Muslims in India to protest against the dismemberment of the Ottoman Empire after World War I.

- The Ottoman Sultan was perceived as the Caliph by many Muslims, and they were concerned about the weakening of his power and the partitioning of Ottoman territories.

- Option 1: Turkey was the heart of the Ottoman Empire, and the Sultan's authority and the integrity of the empire were central to the movement.

- Option 2: Egypt was under British control, but it wasn't the focal point of the Khilafat protest.

- Option 3: Iraq was part of the Ottoman Empire but not the core reason for the Khilafat Movement.

- Option 4: Afghanistan was not involved in the context of the Khilafat Movement.