Seven people A, B, C, D, E, F and G are sitting around a circular table, facing the centre (but not necessarily in the same order). Exactly three people are sitting between E and B when counted from the right of E. Both G and D are immediate neighbours of F. C is sitting to the immediate left of
A. D and E are not sitting next to each other. The position of how many persons will remain unchanged, excluding A, if all the persons are arranged in the English alphabetical order, in clockwise direction, starting from A?