Assertion (R) : If the volume of two spheres are in the ratio 27 : 8. Then their surface area are in the ratio 3:2.
Reason (R) : Volume of sphere= 4/3 πr³ and its surface area= 4πr²
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true and R is not the correct explanation of A.
C. A is true but R is false
D. A is false but R is true