In each of the following two questions two statements are given one labelled as the Assertion(A) or Statement I and the other labelled as the reason (R) or statement II. Examine these statements carefully and mark the correct choice as per following instructions
Assertion (A) - In a gaseous reaction, the ratio by volumes of reactant and gaseous products is in agreement with their molar ratio
Reason (R) - Volume of gas is inversely proportional to its number of moles at particular temperature and pressure.
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