Answer: Cigarette smoking
Step-by-step explanation:
Utility is simply defined as the satisfaction or the enjoyment that an individual gets when the individual consumes a particular good.
An individual who smoked cigarette derives satisfaction from it and gets value for his or her money, therefore it's good for him or her. But in the case of someone who doesn't smoke, the person will see cigarette as something bad because it gives disutility to him or her.