Given below are two statements, one labelled as Assertion A and the other labelled as Reason R:Assertion A: Mahatma Gandhi launched Non-cooperation Movement in India against British Government.Reason R: He believed firmly the policy of prohibition.In the context of the above two statements, which one of the following is correct?

• A. Both A and R are true and Ris 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.