Answer:
C) They let the reader know the tone of the speaker and her actions.
Step-by-step explanation:
According to a different source, these are the options that come with this question:
A) They indicate when and where the play is set.
B) They provide the reader with particularly vivid visual images.
C) They let the reader know the tone of the speaker and her actions.
D) They help the reader understand which character is speaking.
When reading a play, it is likely that you will encounter stage directions. These are instructions that come with the text and that help the reader learn more about the way the play would look like when staged. One of the things that the stage directions can convey is the way the speaker talks, the tone he uses, or the actions he engages in.