How does the development of a european citizenship unite europe?

With the development of the EU, people from any country in the union can travel to any other country without extra paperwork. In addition, they are able to work in any of the member countries and vote in any of the EU elections, which gives the citizens more of a sense of community than if they thought of themselves as members of individual nations.

3or 4 because it can’t be 1 or 2 because citizens who followed the renaissance were challenged the idea of religion and government