Wiggins' circumplex model of personality is limited to traits that have a biological basis in the nervous system. were found in the lsd experiences of subjects. show how people interact with the environment. pertain to what people do to and with each other.

The correct answer is the last one - pertain to what people do to and with each other. Jerry S. Wiggins, American clinical psychologist, was focusing on interpersonal behavior and interpersonal traits in his research.

the number of senators, and representatives, the state has in congress.