A low-cost provider strategy can defeat a differentiation strategy when A. customers are basically satisfied and don't think extra attributes are worth a higher price features. B. there are few ways to differentiate a product or a service and many buyers perceive these differences valuable. C. sellers are not charging a price premium. D. a company can offset thinner profit margins per unit by selling enough additional units to increase total profits. E. many rivals are pursuing a similar differentiation approach.