On an annual requirement of 100 items spread evenly throughout the year, any purchaser has an opportunity of buying all 100 units at a price of $100 each, or buying 10 units at a time at a price of $130. If the inventory carrying cost is 20 percent per year and assuming no ordering costs: A. buying 100 at a time will save the company $3,600 per year. B. buying 100 at a time will save the company $2,130 per year. C. buying 100 at a time will save the company $2,260 per year. D. buying 10 at a time will save the company $2,130 per year. E. buying 10 at a time will save the company $11,000 per year.