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: Codes :

• (a)Both (A) and (R) are true and (R) is the correct explanation of (A).
• (b)Both (A) and (R) are true and (R) is not the correct explanation of (A).
• (c)(A) is true but (R) is false.
• (d)(A) is false but (R) is true.