Which is the best example of potential energy
a) holding a basketball in the air
b) rolling a ball across a flat table
c) flowing electric current through a wire
d) turning on a flashlight in a dark room

Option (A) is the correct answer.

Explanation:

Potential energy is defined as the energy obtained by an object due to its position or height.

Mathematically,         P.E. = mgh

where         m = mass of object

                   g = force of gravity

                   h = height of the object

Hence, we can conclude that out of the given options the best example of potential energy holding a basketball in the air.