According to your textbook, which of the following is true about the use of biofeedback for reducing stress?
a. Biofeedback is not effective for reducing stress.
b. Biofeedback is the most effective therapy for reducing stress.
c. Simple relaxation techniques appear as effective as biofeedback.
d. Biofeedback is effective for reducing stress, but is considered unethical by many therapists.
Answer: c