Answer:
A. the time, place, and conditions in which a story occurs
Explanation:
The purpose of setting in literature is to act as an exposition.
When we read a scary story, and the character starts to describe the circumstances of his physical surroundings, he is describing his setting.
Example: It was midnight when I pulled into the driveway of my house. The lamposts along my street blinked eerily as I made my way to the front door. Something didn't feel right.
Choice B describes mood.
Choice C describes plot.
Choice D describes characterization.