Question: During a phone call to the Psychic Network, Mark was told that "you often worry about things much more than you admit, even to your best friends." Mark's amazement at the psychic's apparent understanding of his personality best illustrates: Need Assignment Help? Group of answer choices a. an internal locus of control. b. reaction formation. c. reciprocal determinism. d. the Barnum effect. e. unconditional positive regard.