Give below are two statements, one labelled as Assertion and the other as Reason (R): Assertion [A]: The basic weakness of the early nationalist movement lay in its narrow social base. Reason [R]: It fought for the narrow interests of the social groups which joined it. In the context of the above two statements, which 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.  R is true, but A is false.