9. Fulton & Sons, Inc. presently lease a copy machine under an agreement that calls for a fixed monthly fee each month, and a charge for each copy made. Fulton made 7,000 copies and paid a total of $360 in March. In May, the firm paid $280 for 5,000 copies. The company uses the high- low method for analyzing costs. Fulton's monthly fixed fee is: A. $80 B. $102 C. $106 D. $112 E. None of the above answers are correct