Write the next sentence in the following story.

How to grow a crystal initial
Shape a pipe cleaner into the initial you want.
Make sure that the initial shape will fit in the jar that you've chosen.
The jar should be wide-mouthed and of a decent but not too large a size for the this project.

Options are:
a). Shape the pipe cleaner into the opening. Press the pipe cleaner against the opening so that the longer sides touch each other.;
b). Paint the bottle beforehand with a clear coat of paint. Start adding the pipe cleaners right away, waiting for them to dry.;
c). Consider the size of the pipe cleaner jar. The proper size jar for your crystal initial kit will need to fit within the other part of the kit.;
d). It should also be well-cleaned before using it, so that there is no residue to interfere with the crystal forming process. Pour the hot water into the jar.;. The answer should be
d).