Each figure is the one before it turned a quarter turn clockwise, and the last figure gains a dot at the centre. One figure is not a turn but a flip. Which one?

(b) is (a) turned a quarter turn clockwise and (d) is (b) turned a half turn, as the rule needs; (e) is a full turn of (a) with the extra dot. In (c) the flag's cloth faces the wrong way relative to its pole and the circle, so (c) is a mirror image, not a turn: (c) is wrong.