Multi-select problem: How does the next paragraph end?

How to make gelatin
Purchase some powdered gelatin packets.
Each packet contains about 1 tablespoon of gelatin. This is enough to set 2 cups (450 milliliters) of water.

Possible answers: (a). If you cannot find powdered gelatin, you can use gelatin sheets instead. To learn how to use those, click.. (b). Use a measuring cup to calculate the water content. The container that contains the gelatin should have a lid that seals shut.. (c). If the boiled water is too hot, it could boil. If there are no packets, you can use a large, round tupperware container instead.. (d). You may need a little more or less depending on the recipe. You can find standard gelatin packets in the pharmacy..
(a).