Question : What is a key feature of the European Union's structure?
Option 1: Single central government
Option 2: Uniform legal system for all members
Option 3: Supranational institutions
Option 4: Common military force
Correct Answer: Supranational institutions
Solution : A key feature of the European Union's structure is its supranational institutions, such as the European Commission, European Parliament, and European Court of Justice, which have authority over certain areas of policy.