In figure a, a circular plastic rod with uniform charge-O produces an electric field of magnitude E atthe center of curvature (at the origin). In figures b.c, and d, more circular rods, each with identicaluniform charges -0, are added until the circle iscomplete. A fifth arrangement (which would be labeled ejis like that in d'except that the rod in the fourthquadrant has charge -0. (a) (0) y (c) (d) Rank the five arrangements according to the magnitude of the electric field at the center of curvature, greatest first (use only the symbols > or =, for example b=d>a=c>e).