Question 8 (3 points) Which of the following best explains the relationship between the number of truckload carriers awarded lanes via optimization during an annual strategic procurement auction and anticipated total truckload transportation costs? a) Costs decrease at an increasing rate as more carriers are awarded lanes. Ob) Costs decrease at a decreasing rate as more carriers are awarded lanes. c) Costs decrease at a linear (i.e., constant) rate as more carriers are awarded lanes