Out of Africa theory
This theory is supported by modern research that early primate life begun in Africa and later spread to other parts of the world. several prehistoric sites have been unearthed in the East African region which supports these assertions.
B. i pick this answer because the middle class has included alot of money through the years
The US is divided into four different time zones.
This view is consistent with the psychoanalytic theory.
Created by Sigmund Freud in the 19th century, psychoanalytic theory researches the development of a person's personality through the interactions of three structures of the mind: id, ego, and superego. According to this theory, even toilet training can lead to personality problems in the future if taught wrongly.
