关于英语学习,倒装部分的学习.so___after she learned the good news that she

关于英语学习,倒装部分的学习.so___after she learned the good news that she could .
so___after she learned the good news that she could hardly fall asleep that night.
A excited the mother was B was the mother excited
C the mother was excited D excited was the mother
我选择了A 可是答案是D 这句话不是应该部分倒装吗?为什么A不对