Answer:
A. Japan was isolated from Europe.
Step-by-step explanation:
Japan is a far east asian country that is mainly made by different islands, the Japanese empire was hard to reach and hard to trade with, and they were very proud of their culture and inheritage, this meant that for a long time they didn´t want any foreign influence on their empire, since they were able to see what was happening to its neighbour, China, and what was happening to them they decided to have an isolation policy.