Answer:
<em>Describe the setting</em>
<em>Introduce the main characters</em>
These two options are correct because the exposition mainly focuses on the setting, characters' backstories, prior plot events, historical context, etc.
The other options are incorrect because they conflict, turning point, multiplying ratios, and topics related to the conclusion are not involved in the exposition, they are separate topics in the plot diagram. Multiplying ratios most likely are not part of the plot diagram unless the story is related to math or etc.
