Assertion: When two positive point charges move away from each other, then their electrostatic potential energy decreases.
Reason: Change in potential energy between two points is equal to the work done by electrostatic forces.
Options:
(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 but R is false.
(d) A is false and R is also false.