A:但是 由于 因此 除非 那么
B:虽然所以因此如果那么
C:但是所以尽管除非否则
D:虽然由于尽管如果否则
从A、B、C三个选项中选出划线部分与其它两项不同的选项。
Meimei is going to be an older sister. Her parents are planning to have their ________ child.