During a Train Ride, a Mysterious Personality Theorist Approaches You

During a train ride, a mysterious personality theorist approaches you and says, "According to my theory, people choose to be in environments that are in line with various personal factors. Then their behaviors will impact both of these factors." As an astute detective, you quickly realize this statement is part of

A) Rogers's self theory.
B) Bandura's reciprocal determinism.
C) Mischel's cognitive-affective theory.
D) Allport's trait theory.