Assertion: The value of acceleration due to gravity does not depend upon mass of the body on which force is applied.
Reason: Acceleration due to gravity is a variable quantity.
Options:
(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 the correct explanation of A.
(c) A is true but R is false.
(d) A is false and R is also false.