Answer:
China took this action at the demand of Confucian scholars who were tired of barbarian contact.
Explanation:
What demonstrates that the China Isolation resulted from China's fear of cultural change is that "China took this action at the demand of Confucian scholars who were tired of barbarian contact."
The above statement is valid because, during this period, the Confucian scholars who were highly regarded considered the interactions with other people from other regions such as the Middle East and Europe to be savage and barbarians whose integration into their lifestyle or trading activities may corrupt their culture and ways of life.
There are several primary sources that you might use, here are a few examples:
A diary written by a soldier during a battle.
Medical records of war doctors from the battle.
newspaper clippings about the battle (and published at the time of the battle).
Speeches of famous generals from the battle.
To grow crops be a house wife and make baskets and clothes and other material
I did three of the problems