Answer:
An infected person sneezes, coughs, etc. near you. You inhale the virus particle, and it attaches to cells lining the sinuses in your nose. The virus attacks the cells lining the sinuses and rapidly reproduces new viruses. The host cells break, and new viruses spread into your bloodstream and also into your lungs.
Explanation:
fun stuff
When you click the gun it's called cocking the gun
D) in particular
it connects both the sentence well
A-a fortnight and odd days
I would go with option B. Formally explain something important. It seemed to me that he was trying to get his point across, while still having a respectful attitude. I hope I could help!