Which of the Following Statements Is FALSE Regarding Marketing-Mix Modeling

Which of the following statements is FALSE regarding marketing-mix modeling? 

A)  In order to employ marketing-mix modeling, a relatively long series of longitudinal data (i.e., for a two-year period) is required. 
B)  Marketing-mix modeling employs well known statistical techniques (e.g., multivariate regression analysis) to estimate the effects that the various marcom elements have in driving sales volume. 
C)  Parameter estimates indicate the individual effects the various marcom elements have on sales. 
D)  Managers learn from such analysis which elements are outperforming others and can use this information to shift budgets from program element to element. 
E)  Once the model is estimated, results can be generalized to other situations.