perryjohnson2121 perryjohnson2121 14-12-2019 History contestada Which was an effect of the establishment of the European Union? Select the two correct answers A. Member countries trade freely without trade barriers. B. Citizens can move among nation states to work and study. C. National borders have been erased. D. Member states have combined armed forces. E. Member states allow the European Union government to make all economic decisions.