Determine which delivery alternative would be most economical for 80 boxes of parts. Each box costs $365 and the annual holding cost is 30% of the cost. Assume 365 days per year. Alternatives Freight cost for all 80 boxes Overnight $300 Eight-day $ 132 Select one: a. All the choices are incorrect b. The eight-day option is at least $20 cheaper than overnight c. Overnight option is at least $20 cheaper than eight-day d. Both options are equally economical