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?
  a.  The total carrying cost is $1,200.
  b.  The annual demand for the part is 2,500 units.
  c.  The cost of placing one order is $1,200.
  d.  The cost of placing one order is $4,800.
  e.  It is impossible to calculate the annual carrying cost given the above information.