please i need help with these questions

Which of the following banking systems comprises the European Central Bank and the National Central Banks of those countries that use the euro? 1) Federal Reserve System 2) National Banking System 3) Eurosystem 4) European System of Central Banks 5) None of the above Question 33 Which of the following banking systems comprises the European Central Bank and the National Central Banks of all European Union member states? 1) Federal Reserve System 2) National Banking System 3) Eurosystem 4) European System of Central Banks 5) None of the above