Electrostatic Potential and Capacitance

Four identical thin, square metal sheets, S1, S2, S3 and S4, each of side a are kept parallel to each other with equal distance d ( a) between them, as shown in the figure. Let C0= 0 a2/d, where 0 is the permittivity of free space. [figure] Match the quantities mentioned in List-I with their values in List-II and choose the correct option.

1. P → 3; Q → 2; R → 4; S → 5
2. P → 2; Q → 3; R → 2; S → 1
3. P → 3; Q → 2; R → 4; S → 1
4. P → 3; Q → 2; R → 2; S → 5