____ you first met Tom. 

A． where was it that

B．that was it where

C．where it was that

D．that was it where

在萧条经济中，价格水平下降。根据向下倾斜的总需求曲线，将刺激总需求增加。这样，萧条将会自动走向繁荣。这种说法对不对？试分析。