For Which of the Following Is a Cross-Cultural Sample Most

Multiple Choice

For which of the following is a cross-cultural sample most important?​

A) Studies about the basic mechanisms of vision, hearing, and other senses
B) ​Studies about the humanlike behaviors of chimpanzees
C) ​Studies about chemicals in the brain and how they influence behavior
D) ​Studies about which male-female differences are natural, and which ones are learned