Consider the following two statements, one labelled as the Assertion and the other as Reason (R). Examine these two statements carefully and select the correct answer by using the codes given below: Assertion [A]: To orbit around Sun, the planet Mars takes lesser time than time taken by the Earth. Reason [R]: The diameter of the planet Mars is less than that of the Earth.

• 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.