The main way in which artisan guilds changed labor and social class in medieval Europe is that it gave the artisans, who were mostly members of the lower class, more power--since these guilds acted somewhat like a modern "union" and helped them negotiate better pay.
The answer you are looking for is A - <span>He used loyal family members as provincial governors.</span>
The immigration station on the west coast where Asian immigrants, mostly Chinese gained admission to the U.S. at San Francisco Bay. Between 1910 and 1940 50k Chinese immigrants entered through Angel Island. Questioning and conditions at Angel Island were much harsher than Ellis Island in New York.
I hope that helps.
I think the answer is C because they didn't know whether they should worship people or not.