Final answer:
During the 1400-1800, both China and Japan implemented the policy of isolationism, limiting their contact with other countries and restricting trade with foreign powers.
Option A.
Step-by-step explanation:
During the 1400-1800, both China and Japan implemented the policy of isolationism.
This meant that they limited their contact with other countries and restricted trade with foreign powers.
China practiced isolationism by restricting European traders to one small trading post in Guangzhou, while Japan enforced a policy of long-lasting isolation.
This policy was influenced by various factors, including superstitious beliefs, extravagances of Chinese leaders, and a spirit of isolationism that penetrated the Chinese court.