Answer only if you're certain, please.

Arm & Hammer recently used a clever freestanding insert in Redbook, Good Housekeeping, and Martha Stewart Living magazines, showing ways its baking soda can be used (e.g., in refrigerators and freezers to absorb odors) beyond its initial purpose as a baking ingredient. This illustrates how consumer-oriented sales promotions:

Group of answer choices

none of these.

are employed to stimulate trial.

are employed to combat competitive activity.

are employed to increase consumption of an established brand.

are employed to introduce a new brand.