If you change the distance between two charged objects, A and B, which of
these factors will be affected?

The factors which are affected will be  based on the distance or range between the charged objects A and  B

Explanation:

Definition:

The force, F among the two-point size charges A and B are divided by a range  r is given by Coulomb formula.

F=9x10^9 AB/r²

Factors:

If the range among them is doubled the force will be decreased to 1/4 of the initial value. And if the range is split, the force will be four times.If the range among them is tripled, the force will be decreased to 1/9 of the initial value. If the range is decreased to one-third of the new value, the force will rise to Nine times the initial value.