Someone would take vitamin supplements to be healthy
This might help,the presence of hydrochloric acid creates an acidic environment within the stomach that is needed to convert pepsinogen to pepsin. Mucus that is produced by the epithelial cells of the stomach help protect the lining of the stomach from the corrosive hydrochloric acid and pepsin.
Sterilization is the process that kills all microbes by the use of physical/chemical agents.
I don’t know why they make everyone type more than 20 characters but B sounds like the most reasonable answer.
