[填句补文]Five-year-old Lani still takes seven medicines with her breakfast every morning. She says her father David. Lani is alive today because of her father David， in more than one way; when she was one year old she received part of her father’s liver in a liver—transplant operation. Lani was born with a liver illness. ________. Doctors advised that a transplant was the only way in which she would live.
A、She had one operation when she was six weeks old， which was not successful.
B、David quickly recovered from the operation.
C、David was finally able to ride his bike again after about a year.
D、Doctors hope that she will continue to get ber and ber.