The European Union is a supranational organization that includes many powerful countries in Europe. In order to be a member of this supranational entity, a country must agree with all of the following conditions except __________.
A.
conducting free trade between member nations
B.
using the Euro as currency
C.
allowing citizens to travel freely between borders of member countries
D.
cutting connections with other continents and operating only within European borders

Please select the best answer from the choices provided
A
B
C
D