Question

limiting contact with foreigners was the main goal of chinese kowtowing. corruption. isolationism. missionaries.

Explanation:

The question is about the Ming Dynasty's policy to limit contact with foreigners. Isolationism refers to a policy of limiting or avoiding contact with foreign nations, which matches the description. Kowtowing is a form of bowing, corruption is unethical behavior, and missionaries are religious workers, none of which relate to limiting foreign contact.

Answer:

isolationism.