Two charges Q₁ = 2.4 x 10^-10C and Q₂ = 9.2 x 10^-10 C are near each other, and charge Q₁ exerts a force F₁ on Q₂. How does F₁ change if the distance between Q₁ and Q₂ is increased by a factor of 4?

A Decreases by a factor of F

B Increases by a factor of 16

C Decreases by a factor of 16