One of the materials listed below is to be placed between two identical thin metal sheets, with no air gap, to form a parallel-plate capacitor. Which produces the greates capacitance?

material of thickness 0.1 mm and dielectric constant 2

material of thickness 0.2 mm and dielectric constant 3

material of thickness 0.3 mm and dielectric constant 2

material of thickness 0.05 mm and dielectric constant 11