问题详情

A possible disadvantage of freely fluctuating exchange rates with no official intervention is that
A．some nations would experience continual deficits
B．nations would no longer be able to undertake domestic policies designed to achieve and maintain full employment
C．the exchange rates may experience wide and frequent fluctuations
D．nations would need a larger supply of international reserves than otherwise请帮忙给出正确答案和分析，谢谢！