The belief that the mind and body are separate but intertwined describes select one:

a. dualism.

b. the nature/nurture debate.

c. cognitive psychology.

d. structuralism.

A. Dualism

It's not D or B

and b is "Cognitive psychology is the study of mental processes such as "attention, language use, memory, perception, problem solving, creativity, and thinking".

so it's A by process of elemination.