What did NAFTA change?
a. It raised tariffs.
b. It enforced trade barriers between the U. S., Canada, and Mexico.
c. It removed trade barriers between the U. S., Canada, and Mexico.
d. It shut down maquiladoras.

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explanation:

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.

a. "how old man winter was driven back” and “ormuzd and arimanes"