The correct answer is B.
The main theme of Shakespeare's play, "Twelfth Night," is love.
At the begining, we are presented with many cases of unrequired love:
- Orsino is in love with and wishes to marry Lady Olivia, a noble woman who is mourning her dead brother.
- Viola, disguised as Cesario, falls in love with Orsino, but cannot act on it because Orsino belives her to be a man.
- Lady Olivia, not knowing that he is actually a woman, falls in love with Cesario.
However, at the end of the play, all of the characters' love is requited:
- Upon discovering Cesario is actually Viola, he realizes that he is in love with her.
- Lady Olivia falls in love with Sebastian, Viola's twin brother and ask him to marry her.