Which of these would a health psychologist study?

mental, emotional, and social factors affect a person's physical well-being.

Explanation: Health psychology is a branch of psychology that focuses on how mental, emotional, and social factors affect a person's physical well-being. This field, also sometimes referred to as medical psychology, also focuses on a patient's mental and emotional reaction to an illness or recovery from an illness.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.