The following items consist of two statements, one labelled as assertion (A) and the other as reason (R). You are required to examine these two statements and select the answer:
Assertion (A) : Biogas is a good source of energy in Rural Rajasthan.
Reason (R) : Rajasthan has a large number of domestic animals.

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.

Answer: Option A