A nurse is teaching a client about smoking cessation. Which of the following client statements should the nurse identify as an understanding of the teaching?

"If I stop abruptly, I can't use a nicotine replacement."

"After 6 months, my risk of heart disease is the same as that of a nonsmoker."

"I will set a specific date to stop smoking."

"I will use high-carbohydrate snacks as a substitute for cigarettes."