A road network has parallel and perpendicular roads running north south or west only.junctions/intersections on this road network are marked as A,B,C,D.....All junctions are at exactly half a kilometre distance from each other.The following is known about junctions A, B, C, H and X.'A' is east of 'B' and west of 'C' ,'H' is south-west of 'C' and south-east of B. 'B' is south-east of 'X'. Which junctions are the farthest south and farthest east?