STATEMENT -1: Work don on a body A by B must be equal and opposite and the woek done by A on B
STATEMENT-2: if body undergoes a displacement under the action of a force, then the force must have done some work.
STATEMENT-3: When we climb the stairs, it is the work done by the stairs which increases our potential energy.
A. F F F
B. T T T
C. T T F
D. F T F