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

How to clear a stuffy nose
Take it easy when blowing your nose.
If your nose is stuffed up but not dripping, or mucus isn't coming out easily when you blow your nose, don't force it. Your impulse may be to blow your nose-hard-until you expel some mucus, but it's best if you leave the tissues alone.

Choose your answer from:
(A). This can help to clear your nose much faster. Don't try to force a runny nose if you're congested-trying to get your nose full may cause more mucus to leak out.
(B). Only blow your nose when it is running. Blowing hard repeatedly will make the delicate membranes inside your nostrils get more inflamed, and can quickly lead to increased stuffiness.
(C). In fact, blowing your nose heavily may induce a runny nose. Instead, inhale and puff out as much air as you can.
(D). Besides working on your nose, dry out your face with a dry towel. Patting the clean tissue dry is particularly important in the event that your nose gets a thick, stuffy feeling.
The answer is:
(B).