Assertion (A): Social mobility is the movement of individuals or groups from one social stratum to another. Reason (R): The degree to which systems of stratification are open or closed depends on the extent of social mobility. Report Please briefly explain why you feel this question should be reported . Report Cancel Both A and R are true and R is the correct explanation of A Both A and R are true but R is not a correct explanation of A A is true but R is false A is false but R is true Show answer A is true but R is false