In A a small shape sits inside a bigger one. What happens to the two shapes in B? Choose the figure that goes with C.

In B the big outer square has disappeared and the small inner circle, still the same size, has taken the outer square's blue colour. So in C the hexagon disappears and the star stays the same size but turns yellow: (d). (a) keeps the star orange, (b) keeps the wrong shape and (c) makes the star big.