单选题 "Their" method cannot be adapted to deal with the more general case because they have not realized that ______.

A、 a fall in the value of real wages would lead to a withdrawal of the labor from market of labor
B、 a reduction in the existing level of money-wages would lead to a withdrawal from the labor market of labor
C、 the supply of labor is not a function of real wages
D、 the demand of labor is only for a minimum money-wages

【正确答案】 C

【答案解析】从原文中“They do not seem to have realized that, unless the supply of labor is a function of real wages alone, their supply curve for labor will shift bodily with every movement of prices.”可知，传统学派没有意识到劳动供给可能不是关于实际工资的函数。