Seven girls A, B, C, D, E, F and G sit in a row facing towards the north (not necessarily in the same order). D sits fifth to the right of
A. D does not sit at any of the extreme ends. F sits exactly in the middle of the row. F sits third to the left of
B. Only two girls sit between G and E. G is not an immediate neighbour of F. Who are the immediate neighbours of C?