Why was japan isolated from other nations for long periods of its history?
it is a group of islands located far from mainland asia
it has few natural harbors from which its people could explore
it contains active volcanoes and has a mountainous terrain
it was in an area of the world that emperors did not want to conquer

Explanation:

Japan was confined in light of the fact that it is situated in the Pacific Ocean, a long way from any territories and were not by any means found for extensive stretches of time.

peasants’ war, (1524–25) peasant uprising in germany inspired by changes brought by the reformation, peasants in western and southern germany invoked   divine law to demand agrarian rights and freedom from oppression by nobles and landlords. as the uprising spread, some peasant groups organized armies. although the revolt was supported huldrych zwingli and thomas müntzerits condemnation by martain luther contributed to its defeat, principally by the army of the swabian league. some 100,000 peasants were killed. reprisals and increased restrictions discouraged further attempts to improve the peasants’ plight.

i think it would be " a" i might be wrong tho

he sent troops to protect the students as they entered the school.