A nurse is teaching deep-breathing exercises to a client who reports experiencing intense stress at work. Which of the following statements by the client indicates an understanding of the teaching?

Choice A reason: Inhaling through the mouth and exhaling rapidly is not recommended; slow, diaphragmatic breathing through the nose is more effective for stress reduction. Choice B reason: Focusing on the movement of abdominal muscles during breathing reflects proper diaphragmatic technique and body awareness. Choice C reason: Holding the breath for extended periods may cause discomfort or hyperventilation in stressed individuals. Choice D reason: Focusing on stressors during the exercise may increase anxiety rather than promote relaxation.