Final answer:
Skinner is associated with behaviorism, Piaget with cognitive theory, and Freud with humanistic elements of psychology.
Step-by-step explanation:
The accurate listing of famous psychologists according to their viewpoints is c) Skinner - Behaviorist, Piaget - Cognitive, Freud - Humanistic. B.F. Skinner is well-known for his work in behaviorism, strongly emphasizing the role of environmental factors and consequences in shaping behavior. Jean Piaget is recognized for his cognitive development theory, which explains how children construct a mental model of the world.
Sigmund Freud, often associated with psychoanalysis, is more closely aligned with humanistic theories which focus on the inner experiences and capacities of individuals. Although not typically categorized under humanism, Freud's emphasis on the unconscious mind and inner life could be viewed as addressing aspects of the humanistic perspective.