The most appropriate answer is D ! as other three are not related to cilia any way !
so D
if you want more info on this, comment !
I've had this question before and the answer is D) 30 minutes per day, 5 days a week
You would properly use the first aid kit in whatever way needed. And if it was serious you'd call 911.
Answer:
C. eating fruits / foods with higher sugar content
The correct answer you are looking for is A.) Resilience