11. (TCO 7) Ricket Company has 1,500 obsolete calculators that are carried in inventory at a cost of $13,200. If these calculators are upgraded at a cost of $9,500, they could be sold for $22,500. Alternatively, the calculators could be sold "as is" for $9,000. What is the net advantage or disadvantage of reworking the calculators? (Points : 4) A. $13,000 advantage B. $4,000 advantage C. $9,200 disadvantage D. $200 disadvantage PLEASE SHOW WORK