Consider distribution centers $($DC$)$ A and B$.$ All else equal, in which of the following scenarios would you expect the benefit of DC centralization $($in terms of the absolute magnitude of safety stock reductions$)$ to be greatest? Consider distribution centers $($DC$)$ A and B$.$ All else equal, in which of the following scenarios would you expect the benefit of DC centralization $($in terms of the absolute magnitude of safety stock reductions$)$ to be greatest?

$...$ demand uncertainty is low and the correlation of demand $\backslash (($A$-$B$)\backslash )$ is low $($zero or negative$).$

$...$ demand uncertainty is low and the correlation of demand $(\backslash ($ A$-$B $\backslash ))$ is high $($positive$).$

$...$ demand uncertainty is high and the correlation of demand $\backslash (($A$-$B$)\backslash )$ is low $($zero or negative$).$

$...$ demand uncertainty is high and the correlation of demand $\backslash (($A$-$B$)\backslash )$ is high $($positive$).$