Match the given terms with their definitions. Can anyone help me ?

1.
Helps to set interest rates for European nations.

2.
An organization that is created when two or more people, organizations, or countries join together. It works to help out its members.

3.
A multi-national currency created to help strengthen the economic market.

4.
An organization created after World War II to help band together many European nations.

a.
European Central Bank
b.
European Union
c.
Union
d.
Euro