Answer:
The answer is A
Explanation:
When you read the text, the text mainly talks about knowing how to eat for example in paragraph 9 its states, " Do not eat as if you had good fare..."
The main reason why the answer is A is because they are talking about eating and how you act around people. It also involves being pleasant.
B would be incorrect because etiquette and knowing how to eat are two different things.
C would be incorrect because it makes no sense and the story included fish to make a POINT.
D would be incorrect because waiters and servants were there to prove a point and them being treated accordingly had nothing to do with them main summarization of the text.'
I hope I've helped.