Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to teach your kid to use a zipper [title] Teach your child about the parts of a zipper. [step] To begin, teach your child the parts of the zipper and what each piece does. Show your child how each piece works using a jacket that isn't being worn. <sep> (A) For example, if your child grabs a piece of clothing in front of him or her, teach him or her to start by blowing on the fabric with the fabric still in front of him or her. [title] Show them about part 2 of the zipper. (B) As they learn, help them be more aware of the parts of the zipper that fold together and which don't. [substeps] One thing you can teach your child about a zipper is that it flatters, bends, or pops while it is fastened. (C) Show your child what different parts of a zipper take up and what they don't do. Some of the things that a zipper does include the following : [substeps] Zipper open/closed zipper closed zipper closed zipper closed zipper closed or closed flap reverse zipper closure open or closed bag zipper metal cover [title] Show your child how a button is positioned. (D) Have them handle the pieces and understand how they fit inside their hands. An understanding of the pieces will not only pique your child's interesting in zippers, but also help him or her understand how it all fits together.
A:
D