this quetion is multiple choice

methods (A) Causal method following methods (A) Causal method is correct? method) is a method that uses historical demand data to estimate demand and identify trends or seasonality. (B) Regression prodiction trend (regression) is a comprohensive method between time serios analysis and causal relationship. (D) Quantitative methods include causal methods and judgment methods. 10. Assuming that the sales forecast errors re distributed normally and the mean squared error (MSE) is 25 the values are