Consider the following statements and select the correct answer from the codes given below : Assertion (A): Like Buddha, Jain Tirthankar is depicted on some Kushan coins. Reason (R): Mathura was a great centre of Jainism during the Kushan period

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