Which of the following affects the strength of electric attraction/repulsion more: The magnitude of the charge or the distance between them?

Question

(Standard SPS10 c)

A. The magnitude
B. The distance
C. Neither. They affect the strength the same amount
Is it B or C?

Answer 1

The question is vague
F = k Q1 Q2 / d^2
if you double the distance, you get 1/4 the force
if you cut ONE charge in half , you get 1/2 the force
So that would be B
However:
If you cut BOTH charges in half, you get 1/4 the force.
I think they want the first answer but I do not think the question is worded clearly.

Answer 2

Thank you