Assertion (A): The surface area of largest sphere that can be inscribed in a hollow cube of side is ra².cm². Reason (R): The surface area of a sphere of radius r is 4/3 πr³ (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, R is false. (d) A is false, R is true.
