That is the man ____ house the police found the lost computer last week.

A．in whose

B．in what

C．in that

D．in which

在关系模式R＜U，F＞中，要使X→→Y为平凡的多值依赖，应满足( )。

A．U-X-Y=φ

B．X∩Y=φ

C．X是单个属性

D．Y是单个属性