Answer:
Harsh rules that meets the requirements of Justice that sets fines and punishments that established standards
Justinian's most important accomplishment was to order a review of the Roman law. This led to the publication of the Corpus Juris Civilis which was soon to be the most definitive codification of Roman Law.
Answer: B is correct.
Explanation: there were many who wanted to follow isolationism arguing that the war was problem of Europeans, there were also those (many Americans were of European origin with their roots in different corners of the Old continent). Situation changed and USA (country of European origin and roots) entered the war and continued engaged in (especially) European security policy.