Why did China not welcome European merchants

For China, Europeans were allowed to conduct trade in enclaves, or walled-off portions of trade cities. The imperial ministers had much the same reasons as their counterparts in Japan for restricting foreign trade: religion and technology would disrupt the society and ultimately the government

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d is the best answer for this question.

religion was the center of there society they practiced human sacrifices and which they believed kept there god strong and that he would keep bad guys away hope this