John Is Trying to Quit Smoking but Is Having Second

John is trying to quit smoking but is having second thoughts. What could you do to try to prevent John from relapsing?

A) Tell him that he can always switch to low-tar cigarettes.
B) Tell him that if he stays cigarette-free for one week, he should reward himself with one cigarette.
C) Tell him that having a glass of wine once a day will help reduce cigarette cravings.
D) Tell him that you are proud of his efforts so far and have confidence in him.