In Antigone the Chorus at times directly affects the action of the play. The main functions of the Chorus are to comment on the action of the play, give back story, and to connect the play to other myths. Sophocles also uses the Chorus to expound upon the play's central themes.
So in a literary analysis essay, you have to analyze, so it would be C) an extensive summary of the plot and answer choice D) Textual evidence to support the thesis.
