Why didn't you tell me there was no meeting today? I all the way here through the heavy snow.

A．needn't have driven

B．can't have driven

C．mustn't have driven

D．shouldn't have driven

时间数列的分解模型中，乘法模型是假定四种变动因素相互独立，时间数列各时期发展水平是各个构成因素的乘积。（）