Adam and Ben are the only two providers of car detailing in town. Adam's demand function can be written as = 200 + , whereas Ben's demand function can be written as = 200 + , where / denotes car detailing jobs done per month by Adam/Ben and / denotes the price Adam/Ben charges per job. Adam and Ben use the same technology so that they have symmetric cost structures: = = = = 40 for cleaning and waxing supplies, and implicit opportunity costs. A. (5 points) Are the car detailing services provided by Adam and Ben perfect substitutes for consumers? Explain your answer briefly. Car detailing services provided by Adam and Ben are: . A. Perfect substitutes B. Imperfect substitutes C. Complements D. Indeterminate Your explanation here.