Physics · WORK, ENERGY AND POWER

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): If the Earth's orbit around the Sun is assumed to be perfectly circular, the gravitational force does zero work on the Earth in any orbital segment. Reason (R): The gravitational force is a conservative central force directed along the line joining the centers of the two bodies. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.