(a) Reflecting over line AC will map hexagon ABCDEF onto itself (NO)
(b) Reflecting over line BE will map hexagon ABCDEF onto itself (YES)
(c) Rotating 120 counterclockwise about point X will map hexagon ABCDEF onto itself (YES)
(d) Rotating 240 clockwise about point F will map hexagon ABCDEF onto itself (NO)
