Step 1: Objective: Match key psychologists to their associated personality theories or schools of thought.
Step 2: Analysis:
A. Eysenck: Developed a hierarchical personality model (PEN), fitting III. Type theory.
B. Allport: A foundational figure in personality psychology, known for his trait concepts, aligning with IV. Trait theory.
C. Freud: Originator of I. Psychoanalytic theory, focusing on the unconscious, psychosexual development, and defense mechanisms.
D. Horney: A neo-Freudian who emphasized social and cultural influences and basic anxiety, best categorized under II. Interpersonal theory.
The correct pairings are A-III, B-IV, C-I, and D-II.
Step 3: Conclusion:
The established pairings are A-III, B-IV, C-I, and D-II, corresponding to option (D).