Assertion (A) `:` The equilibrium is not static but a dynamic one.
Reason (R ) `:` The chemical equilibrium is an apparent state of rest in which two opposing reactions are proceeding at the same rate.
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 a correct explanation of A.
C. A is true but R is false
D. A is false but R is true.