Consider the following statements: Assertion (A): Balban inscribed coins in the memory of the deceased Khalifa. Reason (R): The destruction of the Baghdad Khilafat was the heaviest blow on the muslim power. 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.