Based on the options provided, the most accurate conclusion you can draw from the map is:
Former communist countries have been left out of the European Union.
This indicates that some countries that were formerly part of the communist bloc are not members of the EU, which is a common theme in discussions about the map of Europe and its political landscape.
The other statements either convey incorrect information (e.g., Portugal and Spain are independent countries) or make unsupported assumptions (e.g., about common legal systems or freedom of movement) without specific evidence from the map.