Answer: A) To introduce key characters
, D) To present the central conflict and F) To establish the setting.
Explanation: Exposition is the first part of the plot sequence in a story. It is the description or explanation of background information within a work of literature. It can include description of characters, and their relationship with each other, the setting of the story, the historical context, and the introduction to the conflict or problem. So the correct answers are the corresponding to options A, D and F.
