Angela' s Hair Salon no longer takes reservations. Foot traffic already draws enough customers into the business. The Hair Salon' s success is solely due to their terrific location. Which one of the following, if true, most seriously weakens the argument? ['Foot traffic is greater across the street.', "Angela's Hair Salon has an enormous sign that is visible for miles down the road.", 'All of the nearby businesses are not profitable.', "Angela's Hair Salon employs the town's best hairdresser whose skills are well known in the community."]