Which one of the following does not affect the reject rates at a company's production facilities?

The percentage use of new equipment versus refurbished footwear$-$making equipment

The number of models$/$styles comprising the company's product line and whether Production Improvement Option D has been installed

Annual company expenditures to improve the ease and accuracy of producing the models comprising its product line

The size of the incentive payment per non$-$defective pair produced

Spending for TQM$/$Six Sigma quality control efforts