The correct answer is setting.
Explanation
The moral background against which a story takes place is part of the setting. It tells you where and when the story takes place and helps to provide a mood and backdrop for a story.
Moreover, it can include information about a historical period, place (geography), time (hour, year, month), culture, etc.
C idiosyncrasies are where
Hi!
If I'm not wrong, the answer should be the last option.
Answer: looks good so far,
Explanation:
