Sarah's computer Citysells 5,000 boxes of CD-RW compact discs per year. She determined that she pays $50 to process an order for discs. Her purchase price is $6 for each box of discs and she has determined that storage costs for one year are 25 percent of thepurchase price. What is her approximate total ordering cost?
(a) $865.
(b) $611.
(c) $433.
(d) $87.
(e) $43.