下列关于制定财产传承规划原则的说法，正确的是（）。

A.保证财产传承规划的可变通性

B.保证财产传承规划的流动性

C.保证财产传承规划的收益性

D.保证财产传承规划的现金流动性

E.保证财产传承规划较低的风险

It was _____ back home after the experiment. [ ]

A. not until midnight did he go

B. until midnight that he didn't go

C. not until midnight that he went

D. until midnight when he didn't go