Consider the following statements in regard to the Delhi Sultanate: 1. Hindus were employed in the cavalry and the infantry at the time of the Ghaznavids department. 2. Balban was the first sultan who set up a separate ariz?s (army) department. 2. Balban was the first Sultan, who paid his soldiers fully in cash. Which of the statements given above are correct?

• A.  1 and 2 only                
• B.  2 and 3 only
• C.  1 and 3 only                
• D.  1, 2 and 3