Rodney and Lisa have been dating since high school and plan to get married and start a family soon. Lisa loves Rodney but is concerned about one of his habits. Rodney has been smoking since he was 15 years old. He has tried to quit several times but still continues to smoke one to one and a half packs of cigarettes a day. In order to help Rodney quit smoking, Lisa might want to consider: (a) offering to exercise with him. (b) watching him carefully and reminding him often to stop smoking.