A. (3 points) Use 3 and 4-month moving average on all the data and plot the averages and the prices. B. ( 3 points) Use 3 and 4 -month weighted moving average on all the data and plot the averages and the prices. (0.5,0.3,0.2 for 3 month; and 0.4,0.2,0.2, and 0,2 for 4 month) C. (3 points) Compute the forecasts for each month using exponential smoothing, with an initial forecast for January of $2.30. Use a=.1, then =.3, and finally a=.5. D. (3 points) Compute the forecasts for each month using trend adjusting exponential smoothing, with Lenovo uses the ZX-81 chip in some of its laptop computers. The prices for the chip during the past 12 months were as follows