A nurse is teaching a client who has a fear of heights about the use of systematic desensitization as a method of behavioral therapy. Which of the following client statements indicates an understanding of the teaching?

Choice A reason: Systematic desensitization does not involve imitating the therapist's actions.Choice B reason: Snapping a rubber band on the wrist is a different behavioral technique (aversion therapy), not systematic desensitization.Choice C reason: Standing on a very high place until calm is not systematic desensitization, which involves gradual exposure.Choice D reason: The correct answer is d) because systematic desensitization involves gradually increasing exposure to the feared stimulus (heights) to reduce the fear response.