<span>to support U.S. trade goals by helping to preserve China as a nation
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The Columbian Exchange is marked by the exchange of plant and animal life between the Old and New Worlds. The exchanges<span> of plants, animals, diseases and technology transformed European and Native American ways of life.</span>
For the first question I believe is D, and the second question I think is D as well
Answer:
You could talk about it's past and/or it's ancient civilizations. You could also possibly compare it's old civilization to it's current one, talk about the changes.