问题详情

A description of the current international monetary system is as follows:______.
A．a free-floating system
B．all currencies are pegged (fixed in price) to another currency or to a basket (group) of currencies
C．some currencies are pegged and some float, but few remain fixed at the same rate for very long
D．all currencies float within an agreed upon range of one another请帮忙给出正确答案和分析，谢谢！