Which one of the following is a way to reduce costs and strive to achieve a competitive advantage based on lower overall costs per pair sold than rival companies?

Establishing production operations in no more than two geographic regions so as to minimize the payment of tariffs and unfavorable exchange rate impacts

Avoiding the use of overtime

Striving to keep marketing expenses per branded pair sold to amounts that are below the industry$-$high in each region

Not spending any money on production improvement options

Avoiding bidding for endorsement contracts with celebrities$--$celebrity endorsement contracts always raise per pair costs