Stock outs are most likely to be a problem in businesses that use $q,$ fulfillment

A$)$ engineer$-$to$-$order $($ETO$)$

B$)$ make$-$to$-$stock $($MTS$)$

C$)$ assemble$-$to$-$order $($ATO$)$

D$)$ make$-$to$-$order $($MTO$)$

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