Which of the following is not an example of the implementation of the marketing concept?

A: Jimmy Dean's Sausage introduces turkey sausage patties for a healthier alternative to pork.

B: Ford asks customers to vote online for a new color for next year�s Ford Focus.

C: Burger King reduces the labor costs to produce its sausage-egg biscuits.

D: Microsoft offers rewards for users who can find flaws in its new software.

E: Volkswagen introduces pop-up rollover bars in its convertibles to protect its consumers in the event of a serious collision.