There are two stores, store A and store B$.$ The demand for a product experienced by the two stores are distributed normally as shown below $($where$,\backslash$mu is the mean and $\backslash$sigma is the standard deviation of the demand distribution$)$:

Demand for store A: DA$$N$(\backslash$mu A$=100,\backslash$sigma A$=10)$

Demand for store B: DB$$N$(\backslash$mu B$=100,\backslash$sigma A$=25)$

Both stores procure the item from the same supplier and have the same lead time of delivery. If both stores want to provide the same service level and follow a continuous review policy, which store would need to have a higher safety stock?