This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
A patient can be taught to control his involuntary physiological responses by which of the following therapies - 
Select and explain. 
A. Breathing therapy, B. Stress modification, C. Biofeedback, D. Rational emotive therapy
C: Biofeedback
Answer: C: Biofeedback 
Explanation: Biofeedback is the use of an instrument which provides immediate feedback to the patient regarding his physiological activities normally not available to the conscious mind. The feedback helps the patient, apparently to control these responses.