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 $ \vec{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.
Which of the following is an octal number equal to decimal number \((896)_{10}\)?