Consider a manufacturing process for a handheld communication device with an $8$ week lead time. The process produces three product variants, which differ in terms of how many cameras are in the device. The product variants are named the Uni $($one camera$),$ the Duo $($two cameras$),$ and the Triple $($three cameras$).$ Except for this difference in number of cameras, each product variant is the same. In the current manufacturing process, the customization of the device occurs at the start of production; the first step of the process is to set the number of cameras in the device, and this determines whether the product will be a Uni or a Duo or a Triple.

Each product is made to stock, and the inventory is controlled with a periodic review, base stock policy. The review period is two weeks, demand is assumed to be normally distributed, and the safety factor is z $=2.$

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$1.$ Determine the safety stocks for each product variant, with the demand parameters given in the above table. Please round to the nearest integer.

A$.$ Uni Safety Stock $=$

B$.$ Duo Safety Stock $=$

C$.$ Triple Safety Stock $=$