A nurse is teaching a client about the use of cognitive reframing for stress management. Which of the following statements by the client indicates an understanding of the teaching?

A. "I will learn how to voluntarily control my blood pressure and heart rate": This statement refers to biofeedback, which focuses on controlling physiological responses like heart rate and blood pressure. It is not part of cognitive reframing, which targets thoughts. B. "I will focus on a mental image while concentrating on my breathing.": This is describing guided imagery and relaxation techniques. While these are effective stress management strategies, they are not part of cognitive reframing, which focuses on altering negative thought patterns. C. "I will progressively relax each of my muscle groups when feeling stressed.": This statement refers to progressive muscle relaxation, which helps with physical relaxation but does not involve changing thought patterns. D. "I will practice replacing negative thoughts with positive self-statements": This is an accurate description of cognitive reframing. It involves identifying negative thoughts and replacing them with more balanced or positive ones to manage stress and improve emotional well-being.