Multi-choice problem: Continue writing the next sentence in this paragraph:

How to clear the throat of mucus
Clear phlegm or mucus from your throat by coughing.
If an excess of mucus has made its home in your throat, it's okay to evict it by coughing it up. Find a remote place, such as a bathroom, and try to loosen the mucus from your throat by coughing or hacking.

OPT:
(I) Make sure not to cough too hard or too much, as it can do some damage. Gargle with warm water and salt..
(II) Try sucking a cool beverage, such as lemonade or ice water, while you cough to keep mucus at bay. Use over-the-counter throat clearing tablets..
(III) Don't try to expel it by coughing. Rather, keep coughing until the mucus is clear..
(IV) If you cough while you're trying to clear phlegm, use a cough suppressant. The mucus you expel may also cause a cough..
(I)