Which of the following statements about the bid-rent curve for the service sector is INCORRECT? (a) Because office firms often rely on information from other firms, face-to-face communica- tion is an important reason to foster clustering (b) In order to minimize traveling distance to all other firms in CBD, it is best to locate in median location (c) The need to cluster means that the bid-rent curve for the service sector should be upward-sloping (d) As a firm moves further away from the median location, it is moving father from pro- gressively more firms, and moving closer to progressively fewer firms