Indigenous Psychology Is an Understanding of Behaviour That Stems from Within

Indigenous psychology is an understanding of behaviour that stems from within a culture and is not imported from outside. Which is the "odd one out" in this list of features of Indigenous psychology?

A) It examines psychological phenomena in ecological, historical and cultural context.
B) It is based on sound scientific principles.
C) It advocates the use of multiple methods of investigation.
D) It acknowledges that people have a complex, sophisticated and practical understanding of themselves.