Yes, the person who was raped should be free to decide to abort. Someone already took away her decision to have sex, don't take away her freedom to choose what's best for her and her body.
From what I can see, it's the mother of the girl who made a request for an abortion, not the girl herself. Rape is one of the few reasons that justify an abortion in my opinion, but abortion shouldn't be forced on anybody.
Adoption is still an option