Final answer:
Albert Bandura's concept of reciprocal determinism distinguishes between internal and external influences on behavior, where D) Environmental stimuli is the correct answer as it is not an internal influence.
Step-by-step explanation:
Albert Bandura, known for his social-cognitive theory, proposed that behavior is influenced by a combination of cognitive processes, the environment, and experiences. This concept, known as reciprocal determinism, emphasizes the interplay among cognitive processes (like beliefs, expectations, and personality characteristics), behavior, and environmental context. As such, the answer to the question of which of the following is not an internal influence is D) Environmental stimuli. This is because cognitive processes, genetics, and socialization are internal factors that influence behavior, while environmental stimuli are considered external factors.