Write the next sentence in the following story.

How to ice a christmas cake (marzipan )
Bake the cake in advance.
Have it already prepared on the wire rack and baking tray.
Lay the marzipan.

Select from:
[a]. Unroll the marzipan, removing its protective covering. Lay the circle of marzipan over the cake.
[b]. Use a spatula to spread the cake out on the prepared pans. Don't use pan liners-these tend to take longer to cook.
[c]. Using a rubber spatula, smooth out any lumps that may be lingering in the cake pan. Frost the cake with the icing.
[d]. The cake should be spread out, with it in the middle of the tray evenly. Line the cake rack so that kids can reach the milk jug and enough room to put the icing on it.. The answer should be
[a].