The European Union (EU) is an

This question is asking about the European Union (EU) and what kind of organization it is. The EU is made up of several countries in Europe that work together on different issues like trade, politics, and security.

The question has four options to choose from, and we need to pick the right one.

Option A says that the EU is an economic organization. This means that the main focus of the group is on money and business. While the EU does have a big role in trade and economics, it's not the only thing they do.

Option B says that the EU is a union of European organizations. This is not correct, as the EU is a single organization made up of different countries.

Option C is the correct answer. It says that the EU is an organization of European states. This means that the EU is made up of different countries in Europe that work together on different issues.

Option D says that the EU is an association of former British colonies. This is not correct, as the EU is made up of European countries, not former British colonies.

So, the correct answer is Option C - the European Union is an organization of European states.