A nurse is reinforcing teaching about smoking cessation with a client who has chronic bronchitis and has smoked two packs of cigarettes per day for 30 years. Which of the following client statements indicates an understanding of the teaching?

"I will share my decision to quit smoking with my friends."

"I will ask for a prescription for alprazolam to reduce my withdrawal symptoms."

"I'm not going to set a target date for quitting."

"Unfortunately, even if I stop smoking now, my lung function will not improve."