Answer:
The function of the epiglottis is to seal off the windpipe during eating, so that food is not accidentally inhaled.
The best way to deal with a bully is by C ignoring them if they see it doesn't bother you it will not be fun to them anymore so they will stop doing it.
Just see if your shoe fits on that foot, it might be swollen or uncomfortable. Do what feels best to you.
D. Have a distinct beginning and end.
This is my best guess. It’s obviously not A, and C doesn’t really make sense.