Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R). Select the correct answer:
Assertion (A) Lenin produced a new theory of the revolutionary function of the intellectuals.
Reason (R) The ideas and not the material conditions of production are the effective causes of revolution.

A. Both A and R are true, but 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

Answer: Option A