Besides isolationism, another reason why china limited trade was because

a. europeans valued their goods at much higher than their actual worth.
b. the chinese wanted to prevent their ports from being polluted by foreign ships.
c. the chinese were only interested in the gold and silver europeans had to trade.
d. europeans continued to bring their missionaries to convert the chinese

"Europeans valued their goods at much higher than their actual worth." even if that was the case, the limitation was set by the Chinese

"b.the Chinese wanted to prevent their ports from being polluted by foreign ships." this is not really true and also, a lot of the commerce wasn't made by sea.

"d.Europeans continued to bring their missionaries to convert the Chinese" also not the case back then.

The fact is that the Chinese had only one interest, precious metals. And the only answer that represents that is:

"c.the Chinese were only interested in the gold and silver Europeans had to trade."

both eastern and western early north american cultures were known for building wigwams and longhouses.

wigwams, also called wetus, were small houses of 8-10 feet tall, made of wooden frames covered with woven mats and sheets that were used by algonquian indians. similarly,   longhouses were also used by algonquian and the iroquois tribes, and they were built as well with pole frames and elm bark covering. however, the main difference between wigwams and longhouses is that the latter was much larger than the former, with 200 feet long, 20 feet wide, and 20 feet high with inner raised platforms used for sleeping space.

a slave could own nothing, he can't have a wife, children, or a home. they cant possess nothing and acquire nothing. hope this