Consider the time series below. Complete parts a through e below. 8 Period Demand 1 14 2 14 3 11 4 15 5 18 6 14 7 9 10 a) Forecast the demand for Period 9 using exponential smoothing with a = 0.3. The forecasted demand for Period 9 using exponential smoothing with a = 0.3 is 15.675 (Round to three decimal places as needed.) b) Calculate the MAD for the forecast in part a. MAD = 2.693 (Round to three decimal places as needed.) c) Forecast the demand for Period 9 using exponential smoothing with a = 0.4. The forecasted demand for Period 9 using exponential smoothing with a = 0.4 is 11.504 (Round to three decimal places as needed.) d) Calculate the MAD for the forecast in part c. MAD = 3.848 (Round to three decimal places as needed.) e) Which forecast would you choose? Choose the correct answer below. A. Use the exponential forecast with a = 0.4, because it has the lower MAD. OB. Use the exponential forecast with a = 0.4, because it has the higher MAD. OC. Use the exponential forecast with a = 0.3, because it has the higher MAD. OD. Use the exponential forecast with a = 0.3, because it has the lower MAD