Consider die following statements: Assertion (A): Alauddin Khilji conquered the southern states, but did not annex them. Reason (R): He wanted to expand his empire but not add to Ills responsibilities. Select the correct answer from the codes given below:

• A.  Both A and R are true and R is the correct explanation of A.
• B.  Both A and R are true, but R is not the correct explanation of A.
• C.  A is true, but R is false.
• D.  A is false, but R is true.