Answer:
The Correct Answer is By "shut the country off from contact with the outside world to prevent disruption by foreigners".
Step-by-step explanation:
- During the early 1600s, Japan closed itself off from the outer world by following the Isolationism.
- Under the rule of Tokugawa shoguns, Japan strictly follows the system of Feudalism.
- Samurai warriors kept Japan protected from the outer threats and fairly peaceful for two centuries.