Question ID:PT82 S4 Q6 Passage:To discourage congestion, a city raised on-street parking rates in a downtown business district. For restaurants in the district, whose customers require short-term parking, the surprising result was a small increase in sales. Stem:Which one of the following, if true, contributes to an explanation of the increase in sales at restaurants in the district? Correct Answer Choice:DChoice A:Customers of the district's businesses can also use private parking lots, which are generally more expensive than on-street parking. Choice B:Owners of the district's businesses, for the most part, initially opposed the raising of the on-street parking rates. Choice C:Even before the change in parking rates, the staffs of the businesses in the district used only off-street parking. Choice D:More expensive parking leads to greater turnover in cars parked in front of the businesses in the district. Choice E:The business district is in competition with malls that offer free parking to their customers.