C. a historian could use this source to learn more about what the chinese though about foreigners. d. a historian could use this source to learn more about the chinese christian community.

B. A historian could use the source to learn more about how foreigners traveled in China at this time.

Explanation:

also I have a question did u mean 'thought' instead of 'though'?

answer; i believe that the correct answer is (c) arctic tundra;