Which one of the following is NOT a way to improve the P/Q rating of a company's brand of multi-featured cameras?
a. Spending additional money to improve the brand-specific components used in making the company's multi-featured cameras
b. Improving the caliber of core components used in making the company's multi-featured cameras
c. Adding more special utility features
d. Increasing expenditures for new product R&D, engineering, and design
e. Increasing the number of models in the company's line of multi-featured cameras