Using a 3-Month Moving Average Forecast, What of the Following

Multiple Choice

Using a 3-month moving average forecast, what of the following is not correct based on the demand table below?
$$\begin{array} { c l l l l l l l l l l l l } \text { Month } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 \\\hline \text { Actual Demands } & 120 & 130 & 70 & 10 & 5 & 15 & 25 & 7 & 50 & 70 & 80 & 160\end{array}$$
1) The MAD value is 5.02
2) The forecast tends to overestimate the demands (higher forecasts)
3) The Bias value is -1.48
4) At least 5 months' worth of data is needed to initialize a forecast

A) (1) and (4)
B) (2)
C) (1) , (2) and (4)
D) (4)