This question: $1$

point$($s$)$ possible

Which of the following is a reality each company faces regarding its forecasting system?

A$.$ Outside factors that we cannot predict or control often impact the forecast.

B$.$ After automating their predictions using computerized forecasting software, firms closely monitor only the product items whose demand is stable.

C$.$ Product family forecast are less accurate than individual product forecasts.

D$.$ Most forecasting techniques assume there is no underlying stability in the system.