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

How to use your slow cooker for holiday entertaining
Clear the counter space surrounding your slow cooker.
With a slow cooker, you usually add the ingredients and then walk away. It's safe to leave the slow cooker on unattended, but you need to make sure there's nothing flammable nearby.

[1]. Take out 1 or 2 heavy bottomed pots. Place them in the slow cooker, so that they don't bang against each other, or spatter.
[2]. Counters are more secure without charcoal or other flammable pollutants nearby. Place the slow cooker in a dark location.
[3]. Clear the countertop where you placed the slow cooker for safety. During the holidays especially, there may be many items on your counter.
[4]. If you only have a few cans or containers nearby, then that's it. Most slow cookers will hold about 10 cans.
The answer is:
[3].