An [ ] is a broad problem in psychology; a [ ] compares different viewpoints.
A
An assumption is a broad problem in psychology; a perspective compares different viewpoints.
B
An argument is a broad problem in psychology; a method compares different viewpoints.
C
An issue is a broad problem in psychology; a debate compares different viewpoints.
D
An approach is a broad problem in psychology; a theory compares different viewpoints.