Between 1309 and 1311, Malik Kafur led two campaigns in South India. The significance of the expeditions lies in it that:
1. they reflected a high degree of boldness and spirit of adventure on the part of the Delhi rulers.
2. the invaders returned to Delhi with untold wealth.
3. they provided fresh geographical knowledge.
4. Alauddin promoted Malik Kafur to the rank of Malik-naib or Vice-Regent of the Empire.
Select the correct answer using the codes given below.