Write the next sentence in the following story.

How to fix a stuck zipper
Look for fabric stuck in the zipper.
Sometimes, zippers may stop working because a bit of the surrounding fabric gets caught in the teeth. Inspect the garment or accessory closely for snags, folds, tangles and other signs of a hangup.

Choices: [I] In some cases, the fabric may stop working completely, which causes breakage. Make sure to bring your cotton clothes, like old t-shirts and shorts, to the site of purchase to get the zipper re-examined.; [II] Some fabrics detangle with a set of teeth while others just flip closed. Check the zipper until it is clean.; [III] If you find any fraying or loosening fabric, dry clean the item so it is lint free and simple to zip up. Wrap the item or object with duct tape.; [IV] These tend to be fairly easy to correct. Snags are usually to blame when a zipper completely refuses to budge.;. The answer should be
[IV]