In Act III of Our Town, why does Emily choose to return to her twelfth birthday even though the dead advise against returning?

A. Emily is as headstrong in death as she was in life.
B.Emily believes that by going back she will better understand why she died so young.
C.Emily still feels like one of the living and must learn for herself about cherishing every minute of life.
D.Emily wants to revisit the happiest day of her life so she can feel that happiness for eternity.