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

How to freeze pesto
Scoop your pesto into an ice cube tray using a spoon.
Fill each cell in the ice cube tray evenly. Don't put so much pesto in that the cells overflow into each other.

Available options:
1). If you fill the whole ice cube tray and you still have more pesto, grab a second tray to use. The pesto may stain light-colored ice cube trays, so use trays you don't mind getting discolored..
2). If the cells fill up and the pesto appears lumpy, re-spoon it into the freezer. Keep an eye on pesto grinding..
3). Leave enough space in each cell so that your pesto can stick to the sides instead of going in. Give your pesto just a few minutes to warm up before freezing it again..
4). If one cell overfills, the pesto will be completely frozen. If you prefer to roll pesto into batches, place a rolling pin in between each cell..
1).