I think B is the correct answer. Answer choices C & D are about dolphins, but they do not have anything related to negative effects surrounding human and dolphin interaction. A, on the other hand, may seem like a good choice, but then again, the answer is too vague.
Hold on let me go do my research I’ll brb .
Answer:
saliva is slightly acidic and helps break the food down it also allows it to have a easier time going down your throat
Explanation:
saliva is acidic it coats the food in itself once it in your mouth Wich makes it easier to chew and swallow
