It is actually a 50/50 chance of dying. My hole(7 people) family was sick but only 2 died ( my grand parants) so it wasn’t a pleasant Sumer
I know that B applies, and D might apply assuming it means certain materials can pass through and not all materials can pass through.
It is the last one I’m pretty sure
The secretion of hydrochloric acid by the stomach plays an important role in protecting the body against pathogens ingested with food or water. A gastric fluid pH of 1 to 2 is deleterious to many microbial pathogens; however, the neutralization of gastric acid by antacids or the inhibition of acid secretion by various drugs may increase the risk of food- or waterborne illnesses. Peptic ulcer disease is often treated by decreasing or eliminating gastric acid secretion, and such treatment blocks the protective antibacterial action of gastric fluid.
Hope this helped!!:)
The answers is bites from infected insects
