Write the next sentence in the following story.

How to make a handmade fishing net
Choose your string.
In theory your fishing net can be made of any string or twine. Think about what species you're trying to catch, and how it's size might affect the strength of the string used.

Select from the following.
[I] It's recommended that you use a bonded nylon string for strength. Of all contemporary twine it is the most durable and reliable.;
[II] If you're hunting sharks, for example, you will need about 1 inch (2.5 cm) of taut string from which to tie your fishing line. An older type of fishing net is not able to support many sizes and lines at once.;
[III] For example, if you're going to bait a small mosquito, you may want a slightly larger nylon string for your hook if you're trying to catch a medium-sized mosquito. Any string color you choose should match your fishing line.;
[IV] A small cast net will cost $5 to 15 (6 to 9 kg). Larger casts can cost $8 to 20 (8 to 13 kg).;. The answer should be
[I]