Your boss has asked you to look into optimizing the commercial van ownership strategy for your company. The company you work for bought a van for $85,600 for making deliveries. You expect the van to be driven 29,500 miles per year, with each mile costing you around $0.64 per mile in the first year. The operating cost per mile is expected to increase by 6% per year after the first year. The resale value of the van is expected to decrease by 20% in the first year and then by 9% per year from there on out. What is the optimal ownership period (economic life) in years assuming a MARR of 8%? Hint: You are trying to find which ownership period in years results in your yearly costs being the lowest (AW of costs). That is the ownership period that would make it the cheapest to own that item on a per year basis. 6 years 7 years 5 years 4 years 8 years