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

How to decongest your nose
Apply a warm washcloth to your nose and face several times a day.
The heat will open up your blood vessels and make it easier for fluid to escape. Place a washcloth in warm water but make sure that the water is not too hot so that you do not burn your skin.

Select from the following. [I] Use warm water and lather the washcloth in warm water. Try to maintain a steady stream of water to prevent water from getting into your nose. [II] Ring out the excess water and then place the washcloth over your face and nose. Relax for about five to 10 minutes, and then remove the washcloth. [III] Dab a cotton ball with a gentle cleanser on your nose. Using a clean cotton ball while cleaning your nose helps to get rid of bacteria and minimize infection. [IV] To help warm up the water and the washcloth, add some essential oils to it. If you have sensitive skin, adding an aloe can help to tighten the pores in your nose, but it may hurt.
The answer is:
[II]