Using the actual demand shown in the table below, what is the forecast for June (round to whole number) using a 3-month weighted moving average and the weights 0.2, 0.3, 0.5 (remember how to apply them)? May Feb 40 Mar 44 Apr 48 50 Dec. Jan 39 36 O a. 48 O b. 52 O c. 54 O d. 46 O O O Data Set A1 Period 1 60 cv own Actual Sales Volume 10,000 11,400 14,550 15,050 17,250 18,500 15,700 19,500 22.200 21,550 Using Data Set A1, what would be the forecast for period 5 using the exponential smoothing method? Assume the forecast for period 4 is 14000. Use a smoothing constant of a = 0.4 (Choose the closest answer. O a. 15,350 O b. 15,050 O c. 14,420 d. 14,575