Which one of the following is the most effective means for a company to grow its wholesale sales of branded footwear in the Latin America region?

Offer a mail$-$in rebate that is $$1$ higher than the industry average in Latin America

Spend an annual amount for search engine advertising that exceeds the industry average in Latin America by at least $$1$ million

Charge footwear retailers in Latin America an average wholesale price for branded footwear that is below the average retail price the company charges individuals consumers to buy its branded footwear online at the company's website in Latin America

Provide footwear retailers in Latin America with an amount of merchandising and promotional support that exceeds the industry average in Latin America

Market branded footwear to Latin American retailers that has an S$/$Q rating $1\mathrm{.}5$ stars higher than the industry average S$/$Q rating in Latin America