According to radical behaviorists,

A) we can use behavioral observations to infer how the mind works.
B) internal processes, such as hopes and expectations, are never the causes of behavior.
C) all important behavioral variations can be traced to genetics.
D) all behavior can be explained in terms of the id and the ego.

Radical Behaviorists

Psychologists who follow a doctrine emphasizing the external behaviors of people and their reactions on a given situation, largely ignoring internal processes like cognition.

Behavioral Observations

The method of studying subjects' actions in their natural settings without intervention.

Internal Processes

Internal processes involve the cognitive, psychological, and physiological operations that underlie an individual's mental and emotional functioning.