During autumn​ months, passenger railroads across the globe deal with a condition called slippery rail. It results from a combination of​ water, leaf​ oil, and pressure from the​ train's weight, which creates a slippery black ooze that prevents trains from gaining traction. One solution for slippery rail is to cut back trees from all of a rail​ firm's rail network on a regular​ basis, thereby helping prevent the problem from developing. If​ incurred, would this railroad expense be a better examp

During autumn​ months, passenger railroads across the globe deal with a condition called slippery rail. It results from a combination of​ water, leaf​ oil, and pressure from the​ train's weight, which creates a slippery black ooze that prevents trains from gaining traction. One solution for slippery rail is to cut back trees from all of a rail​ firm's rail network on a regular​ basis, thereby helping prevent the problem from developing. If​ incurred, would this railroad expense be a better example of a fixed cost or a variable​ cost? Why? A. This is an example of a fixed cost because the cost​ doesn't vary with the number of trains. B. This is an example of a variable cost because it is a​ long-run cost. C. The cost can be either fixed or variable depending on whether we are talking about the short run or long run.