Consider the following statements and select the correct answer from codes given below: Assertion [A]: Tropical areas get more insolation than the temperate area. Reason [R]: Tropical areas have larger length of day than the temperate areas.

• 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.