hello please anser and explain :

Two very large thin sheets are parallel and the distance between them is equal to d. The sheets are uniformly loaded with equal but opposite sign charge densities. A point charge placed halfway between the sheets (at distance d/2 from each sheet) experiences an electric force F due to the electric field of the sheets. If we move this charge to a distance d/4 from the positive leaf and 3d/4 from the negative leaf, what will be the force on the charge?

Answer choice :

1- F/4

2-F/2

3-4F

4-2F

5-F