If the people if cerritos traded with the people of mayapan, what goods might they exchange? how about the people of copan and the people of el mirador

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion