Write the next sentence in this paragraph:

How to become a hockey referee
Purchase the necessary gear.
All officials will need to own their own gear and bring this gear with them to every hockey game. You will need to purchase hockey skates, an officials hockey sweater, a black hockey helmet, shin guards, elbow pads, and a whistle.

Choose your answer from:
(I). You will also need to have a hockey identification card. These can be found either online or as a contact information or by giving them to the referee first.;
(II). Hockey hockey gloves are the most effective but also the most expensive equipment. There is no requirement to buy gloves; your equipment is as stylish as it is worth.;
(III). All officiants must carry hockey gloves. Hard up hockey gloves are illegal to wear at hockey practice.;
(IV). Keep all of this equipment in a single bag so that you never forget something important. Be sure to sew your referee crest onto your hockey sweater before your first match.;
(IV).