Why did Mexico open its doors of immigration to America? A. To limit the number of ppl in Mexico B. To expand its boarders C. To increase settlements in Texas D. To gain more land from the U. S

i honesty don't know, good luck tho dawg

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.