Which one of the following is not an attractive way to reduce costs and help a company achieve a competitive advantage based on lower overall costs per pair sold than rival companies? Copyright by Glo-ban Software, Inc Copying, distributing, de 3rd party webolbo posting sexpmuy prohibited and constitutes copyright violation Not offering free shipping to online buyers Avoiding bidding for endorsement contracts with celebrities--celebrity endorsement contracts always raise costs per branded pair sold (however, stiff competition from rivals may require having at least one celebrity endorsement) Delivering orders to footwear retailers in 4 weeks and not offering mail-in rebates Spending a maximum of $1 million annually per region on search engine advertising Investing in production improvement option A that reduces reject rates by 50%