This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to serve boudin
Place the boudin in a saucepan of water.
Place a few links inside a medium saucepan. Add enough water to the pot to completely submerge the boudin.

OPT:
1). Make sure that there's room for the links to move around inside the water. Do not crowd the boudin, since doing so could result in uneven heating.;
2). The extra water will prevent the boudin from becoming too brittle once it's submerged. Add the garlic, onion, worcestershire sauce, and chili oil.;
3). Boudin is a staple of asian cuisine, since it's made from as many meats as it can pull off. Let the boudin expand as it cooks.;
4). You can use boiling water, or tap water, to keep the boudin in place. Watch the boudin closely as it floats in the water so that you can differentiate its " from " object.;
The answer is:
1).