Answer:
a. allows trade across country borders without tariffs
Explanation:
The geneve convention was about military rules to protect human rights and i was signed on 1949
While the European Union or Eurozone is a free-trade zone where the factors are free to move cross the members and the union. This, was the EU main goal. To eestimulate trade among the members and create a better monetary policy through the adoption of a single currency (Euro)