What functions does the chorus serve in typical ancient play? ​

In a speech to high school students, a business owner makes the following statement short response

Fine fellow, that lebrun," said arobin when robert had gone. "i never heard you speak of him.""i knew him last summer at grand isle," she replied.  what becomes apparent during this conversation? robert and arobin are both aware they are rivals for edna’s affections.arobin is unaware of robert’s role in edna’s life, but robert is aware of arobin’s role.robert is completely unaware of arobin’s romantic intentions and love for edna.robert has much more confidence in himself than arobin does.

Do not use this medicine with milk, cheese, or other dairy products. what end punctuation needs to be added to the above bolded word?