Steven would spend only 1 hour in the gym 3 times and week, but recently he has been spending 3 hours a day 7 days a week working out. He has noticed that his back is chronically hurting. Once Steven has stopped his work out, he starts thinking about what he did not accomplish. This is an example of what type of behavior? Group of answer choicesa.habitb.addictive behaviorc.impulse controld.tolerance