Given below are two statements: one is labelled as Assertion (A) and other is labelled as Reason (R).
Assertion (A): The radius vector from the Sun to a planet sweeps out equal areas in equal intervals of time and thus areal velocity of planet is constant.
Reason (R): For a central force field the angular momentum is a constant. In the light of the above statements, choose the most appropriate answer from the option given below:
