Correct Answer:
A. European Central Bank
The Euro currency, used by 19 member states of the European Union, is controlled by the European Central Bank (ECB). The ECB is the central bank for the eurozone and is responsible for maintaining price stability and conducting monetary policy for the region. The IMF (International Monetary Fund) focuses on global financial stability, the Federal Reserve is the central bank of the United States, and the World Bank provides development assistance, none of which control the Euro's monetary policy.