He was sentenced to death _____ what he has stolen from the bank.

A．that

B．since

C．because

D．because of

如图所示，竖直放置的轻弹簧一端固定在地面上，另一端与斜面P连接，P与斜放的固定挡板MN接触且处于静止状态，则斜面体P此刻所受到的外力个数有可能为

A．2个　　　　　　　　

B．3个

C．4个

D．5个