The EOQ for Part B-22 is 2,500 units, and four orders are placed each year. The total annual ordering cost is $1,200. Which of the following is true? O a. The cost of placing one order is $4,800. b. The annual demand for the part is 2,500 units. The cost of placing one order is $1,200. Od. The total carrying cost is $1,200. O e. It is impossible to calculate the annual carrying cost given the above information. x