Assertion (A): Yamuna becomes a dead river between Delhi and Agra during most of the year.reason (R): Yamuna is a non-perennial river. 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