Final answer:
The correct answer is option a) Cognitive psychologist; Behaviorist.
Step-by-step explanation:
The correct answer to the comparison between Piaget and Skinner is a) Cognitive psychologist; Behaviorist. Piaget is known for his work in cognitive psychology, emphasizing how people think and understand the world. Conversely, Skinner is a key figure in behaviorism, which focuses on observable behaviors and the ways in which the environment can shape and modify these behaviors.
Cognitive psychology concentrates on the study of human thinking and mental processes, whereas behaviorism strictly considers the effects of the environment and external stimuli on a person's actions without delving into the internal cognitive experience.