Which of the following is not among the factors that affect worker productivity?

How favorably the total annual compensation of workers compares to industry$-$average total compensation levels at

production facilities in the same region

The number of models workers must assemble at a given production facility

Whether the S$/$Q rating of the branded private$-$label footwear being produced by workers is above or below $5\mathrm{.}0$ stars.

The percentage increase in annual base pay

Expenditures for best practices training per workerWhich of the following is the most important competitive factor in determining a company's ability to secure contracts to

supply private$-$label footwear to chain retailers in a particular geographic region?

Whether the company agrees to allow the celebrities it has under contract to endorse its branded footwear to also

endorse the private$-$label footwear it supplies

How the company's price offer to supply private$-$label footwear to the region's chain retailers compares to the price

offers of rival footwear companies

Whether the company offers to deliver the orders of chain retailers for private$-$label footwear in less than $4$ weeks

The company's customer service rating

The number of private$-$label models$/$styles the company offers to supply