Impulse
it’s the only one that makes sense energy is just light and power almost the same thing
Answer:

Explanation:
Since the two charged bodies are symmetric, we can calculate the electric field taking both of them as point charges.
This can be easily seen if we use Gauss's law, 
We take a larger sphere of radius, say r, as the Gaussian surface. Then the electric field due to the charged sphere at a distance r from it's center is given by,

which is the same as that of a point charge.
In our problem the charges being of opposite signs, the electric field will add up. Therefore,

where,
= distance between the center of one sphere to the midpoint (between the 2 spheres)
An unbalanced force.
Newton's first law states that an object in motion will stay in motion until a unbalanced force acts upon it.
Put your bet down on Choice 'A'. The others are just flat wrong.