Answer: Principle of motion economy.
Explanation: principle of motion economy developed by Frank and Lillian Gilbreth are guidelines to help determine the work method, workplace layout, tools, and equipment.
The aim of this is to help in identifying and replicating one best way to complete a task and also minimize the physical and perceptual loads imposed on people engaged in that task.
Full Question options:
A. Transcranial magnetic stimulation
B. Cognitive-behavioral therapy
C. Psychodynamic therapy
D. Psychotropic medications
Answer:
Cognitive behavioral therapy
Explanation:
Cognitive behavioral theapy involves finding out patients thought and behavior patterns and relating these patterns to patients behaviour and emotional state
From the above example, the psychologist/therapist would best use this therapy to find out why Marcus feels emotionally down and why he prefers to stay in his room and play with his computer all day.