I say it's D because it is showing everything that you talked about
Hope this help
To prepare the readers for the end of the story (A)
Answer: affect
Explanation:
here's random words for the explanation
"During the shop’s peak hours – from eight in the evening till around midnight – one could hardly hear oneself talk because of the boisterous chatters that went on."
Any .gov website because it is official and trustworthy.