The Countries That Use the Euro as Their Currency Have

The countries that use the euro as their currency have:

A) agreed to use a single currency (exchange rate stability) , allow the free movement of capital in and out of their economies (financial integration) , but give up individual control of their own money supply (monetary independence) .
B) gained control over their own money supply (monetary independence) , allowed the free movement of capital in and out of their economies (financial integration) , but give up exchange rate stability.
C) agreed to use a single currency (exchange rate stability) , allow individual control of their own money supply (monetary independence) , but give up the free movement of capital in and out of their economies (financial integration) .
D) none of the above