André is a doctor who is quick to mention that he is a doctor when he first meets other people.He also tends to perceive himself and other physicians in a more favorable way than nurses and non-medical staff.Which concept best explains André's perceptual process?

A) Attribution theory
B) Social identity theory
C) Self-fulfilling prophecy
D) Perceptual defense
E) Myers-Briggs Type Indicator

André's behavior is consistent with social identity theory, which suggests that individuals tend to categorize themselves and others into social groups, and then make judgments based on the perceived qualities of those groups. In this case, André identifies strongly with the physician group and perceives it as superior to the nurse and non-medical staff groups. He therefore behaves in a way that reinforces his social identity as a doctor.