the goal of the european union is?

Question

global security
national security
military security
political and economic cooperation

This question I do not know

Answer 1

Well, it's not global since it includes only the countries in Europe.

If it's national, which nation? ("national" implies each nation separately, but how would this happen in a union?)

Now ... you tell me what you think about the other two.

Answer 2

political and economic cooperation