What role does the exposition play? it ends the play
it builds the climax
it gives the character descriptions
it sets up the play

it gives the character description is the role the exposition plays.

Explanation:

The role that the exposition play in the plot is: The writer gives information about the setting, characters, situation, and the conflict is introduced. Explanation: When the background information is added in any story or narrative, it is said to be termed as narrative exposition

It gives the character descriptions.

where is the article