Assertion: The centre of mass of a body must lie on the body.
Reason: The centre of mass of a body does not lie at the geometric centre of body.
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.