An entity manufactures 4 products: A C E F CM/Unit $21.66 $31.57 $25.41 $36.94 1 6 10 2 Kg of Y used KG of X 3.00 4.00 8.87 7.60 used 3855 1766 800 3893 Expected demand (units) Material X is very scarce and it is anticipated that only 24593 kg will be available next year. There is expected to be 200,000 kg of material Y available. What is the maximum contribution margin that can be achieved next year? Select one: a. $156337 b. $219888 c. $168240 d. $283059