C Connolly Company produces two types of lamps, classic and fancy, with unit contribution margins of $13 and $21. etw.tach must spend time on a special machine. The firm owns four machines that together provide 18,000 hours of mechi time per ym. The classic tomp requires 0.20 hours of machine time, the faney Samp requires O.so hours of machine time What is the total contribution margin of the optimal mix of classic and fancy tampo? O., 51.000.000 Ob 950.000 c. 590,000 Od 51.170.000 O 31.10.000