When using regression to combine forecast of the same Y variable derived in with various methods how do you determine the best forecasts to include in the model?
A. Forecast methods that are highly correlated are best to combine with regression
B. Forecasts with low correlations are best to combine with regression.
C. Forecasts that are most accurate are best to combine with regression.
D. All forecasts of Y can be combined to yield a better combined result.