单选题
[填句补文]Five-year-old Lani still takes seven medicines with her breakfast every morning. “She‘s very good about it，” 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 stronger and stronger.
正确答案：A
答案解析：文章说Lani出生时就有肝功能缺陷，她六周大的时候做过一次手术，但是没有成功，所以后边医生才会建议说她能活下来的唯一方法就是做移植手术。