How and why does Cyrano help Roxane and Ligniere in Act 1 of Cyrano de Bergerac?

Which of the following is a true statement a. directors commit change any lines from a text or script b. actors must interpret their characters as the author of the text intended them to c. directors have dramatic license to interpret a story in any way they choose d. a director must use the same setting that is described in a novel or script