The name to the lack of understanding and communication between older and younger American IS CALLED GENERATION GAP.
The older and the younger Americans belongs to two different generations and thus, they have different views about life generally. This differences in view usually breed lack of communication, which ultimately result in lack of understanding between the old and the young.
Correlation does not imply causation" is a phrase used in statistics to emphasize that a correlation between two variables does not imply that one causes the other
The answer for your question
is C.) 4
The encomienda system gave Spaniards the right to demand labor and tribute from Native Americans and Africans. It contributed to the rise of African slavery because it permitted the Spanish to do whatever they wanted to the Africans.