Given below are two statements, one labelled as Assertion A and the other labelled as Reason R:Assertion A: In early medieval India, most of historical literature was composed in the small kingdoms.Reason R: The rulers of these kingdoms encouraged the writers to establish their higher lineages.In the context of the above two statements, which one of the following is correct?

• 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.