Assertion (A) : The constant pressure lines are steeper than the constant volume lines for a perfect gas on the T-S plane.
Reason (R): The specific heat at constant pressure is more than the specific heat at constant volume for a perfect gas.
(A) Both A and R are individually true and R is the correct explanation of A
(B) Both A and R are individually 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