Assertion A : If we move from poles to equator , the direction of acceleration due to gravity of earth always points towards the center of earth without any variation in its magnitude .
Reason R : At equator , the direction of acceleration due to the gravity is towards the center of earth .

Options

A. Both A and R are true and R is the correct explanation of A .
B. Both A an R are true but R is NOT the correct explanation of A .
C. A is true but R is false
D. A is false but R is true