Why does Vivien say that she isn’t bothered by Lancelot’s assertions about his current marriage in King Arthur's Socks: A Comedy in One Act?

A: She does not believe in the institution of marriage.

B: She embraces the new ideas of “free love.”

C: She is concerned only with her own pursuits.

D: She is a romantic who believes love conquers all Arthur's Socks: A Comedy in One Act?