Which of the following describes critical mass? ANSWER Unselected Keeping all the inventory of a product at a single location, such as at a firm's manufacturing plant or a warehouse, and shipping directly to each of its customers Unselected A situation in which several competing firms clustered in one location attract more customers than the total number who would shop at the same stores at scattered locations Unselected A mathematical model used to evaluate locations based on proximity factors Unselected A good starting point to evaluate locations in the target area using the load-distance model