Electric Charges and Fields

List-I shows four configurations, each consisting of a pair of ideal electric dipoles. Each dipole has a dipole moment of magnitude p, oriented as marked by arrows in the figures. In all the configurations the dipoles are fixed such that they are at a distance 2r apart along the x direction. The midpoint of the line joining the two dipoles is X. The possible resultant electric fields E at X are given in List-II. Choose the option that describes the correct match between the entries in List-I to those in List-II.

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