You Have a Friend Who Is a Smoker

You have a friend who is a smoker. Which of the following would be most helpful in encouraging your friend to quit smoking?

A) Tell your friend that the consequences of smoking will not be felt until he or she is much older.
B) Explain to your friend how much money he or she could save by quitting smoking.
C) Call your friend stupid and put him or her down for smoking.
D) Suggest to your friend that he or she switch to bidi cigarettes instead of American cigarettes.