Marketing strategies are tailored to the phase of a products life cycle, for example, Frito-Lay competes in the very mature, but still profitable, food chip category. From the list below, select marketing strategies that would be appropriate at this stage. Check all that apply.

a. Run aggressive ad campaign to appeal to early adopters.

b. Begin phasing out chip products, shift production to other food snacks.

c. Introduce Cheddar Bacon Mac and Cheese flavor.

d. Offer $1 off coupons to remain price competitive.