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

How to keep roaches away from your bed
Look for potential entry points to your bedroom.
Take a few minutes to search your entire bedroom for places where roaches could potentially get in from outside. Take a close look at where the walls meet the floor and ceiling in your room, the corners, the air vents, and around the windows.

Choices:
+Having a good rule of thumb about where roaches might enter is very important. Common entrance points for roaches include the bathroom and kitchen.
+Keep in mind that roaches can slip through cracks and holes that are as small as 3 millimetres (0.12 in) high. Seal up the cracks with a caulking gun.
+Finally, try looking underneath speakers, on other electrical outlets, or in places where roaches could easily sneak under the mattress and crawl under. You can also search the tops of chairs, under the window shades, and wherever else roaches like to gather.
+Note which particular areas are most likely to have roaches. One common area to visit is the baseboard on the wall across from the bed.
The answer is:
Keep in mind that roaches can slip through cracks and holes that are as small as 3 millimetres (0.12 in) high. Seal up the cracks with a caulking gun.