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?

"I will be asked to imitate my therapist's actions around heights."

"I will snap a rubber band on my wrist when heights scare me."

"I will need to stand on a very high place until I am calm."

"I will slowly be exposed to places of increasing height."