What Is the Best Summary of the Current State of Knowledge

Multiple Choice

What is the best summary of the current state of knowledge about personality types?

A) Knowing a person's personality type adds to our ability to predict his or her behavior beyond what can be predicted by knowing how the person stands on the traits that define the typology.
B) Although types add little for psychometric purposes of measurement and prediction, they still may have value as aids in education and theorizing.
C) There are five basic personality types, each corresponding to one of the Big Five personality traits.
D) Compared to the trait approach, the typological approach is completely useless for explaining or describing people or behavior.