3?. {2.0 points} Based on the Valul'y'lart description above and your analysis, given that onehalf of the sales are lost, applying the Taguchi's loss function, the permitted yariability [ym} where the marginal supply cost equals the marginal sales loss is a. 1.13% b. 1.?9% c. 2.96% d. 3.53% e. 5.89%