Answer: Fermentation
Explanation: Fermentation is the process that occurs when there is not enough oxygen in yeast cells for aerobic respiration. Fermentation is the process that converts sugars to acids, alcohol or gases.
So we can protect ourselves from the same virus if it attacks again in the future
For building protein the first step should be DNA that makes how protein should be so the answer is C :))
i hope this is helpful
have a nice day
