t’s always going to be an asymmetrical comparison.
Do you compare the Roman empire as its peak with 12th century France or just Roman Gaul? Significant parts of Europe were never under Roman control to begin with and those would have been more advanced in the early middle ages than during Roman times. Besides that many regions of Europe such as Britannia, Gaul, Germania and the Danube region had a low population during Roman times whereas they had a higher one during the Middle Ages.
The balkans The declining powers and collapse of the Ottoman, otherwise the sick man of Europe, empire made the soviet to focus their interests to the Balkans. this was especially after the japanese invasion and acquisition of Manchuria. This renewed interests in the Balkan states sparked the conflict that brought about the wars.
Greek Gods were almost magical and the people held very high respect for them. They tied to all culture they had.
"The Roosevelt Corollary" is the best option from the list in terms of what would prevent Japanese intervention in its neighboring island of the Philippines.
The answer in my opinion is "sharp but brief"
hope this helps! God bless and if it's ok I would really love brainiest