If we could see the options given we could help out with assisting with an answer.
Answer:
A
Explanation:The earliest evidence of crops appears between 9000 and 8000 bp in Mexico and South America. ... Corn, the crop that eventually dominated most of the agricultural systems in the New World, appears rather suddenly in Mexico between 6300 and 6000 bp but was clearly domesticated earlier than that.
False, a tariff is a tax on imports not a limit placed on the number of imports allowed.
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