Kim is 15 years old and attends with her mother who caught her smoking a cigarette when she arrived home early from work. Kim has admitted she has regularly smoked around 10 cigarettes a day for 6 months now. She admits she has not been able to go a day without smoking in the last few months. You discuss the health risks associated with smoking and Kim is keen to be referred to the local smoking cessation service. Her past medical history is unremarkable.
Which one of the following treatments is she most likely to be offered?