What Is the Difference Between Cultural Psychology and Cross-Cultural Psychology

What is the difference between cultural psychology and cross-cultural psychology?

A) Cultural psychology emerged out of evolutionary psychology; cross-cultural psychology emerged from humanism.
B) Cultural psychology focuses on one culture; cross-cultural psychology focuses on at least two different cultures.
C) Cultural psychology addresses how we differ across cultures; cross-cultural psychology addresses how we are similar across cultures.
D) Cultural psychology investigates people throughout their lifespan; cross-cultural psychology investigates middle-aged adults only.