Alternative Approaches to Personality Such as the Behaviorist and Cognitive

Alternative approaches to personality such as the behaviorist and cognitive approaches complement trait theories of personality because:

A) behavior and personal experience, which influence personality, are major parts of the alternative approaches.
B) trait theories focus on the negatives of personality.
C) it is easier to observe behavior than to ask someone to fill out a personality inventory.
D) trait theories focus only on the positive aspects of personality.