How Does the Cultural Perspective Add a Valuable Dimension to Psychology

How does the cultural perspective add a valuable dimension to psychology?

A) by stating that anthropology explains behaviour
B) by proposing that in order to understand people of different backgrounds we must spend time with them
C) by knowing that what we learn about one race is probably not true about other races
D) by stating that our culture, ethnicity, race, sex, and so forth influence our behaviour