Answer:
A) Offering 1/2 price discounts through Costco.
Explanation:
Probably the most commonly used and most effective sales promotion is to offer a discount to your products or services. Everyone loves the idea of paying less for a product they need or want. But there is a catch with this type of activity, you shouldn't do it very often. If discounts are offered on a regular basis, then customers will tend to purchase the product only when a discount is available.
