The chief difference between a low-cost provider strategy and a focused low-cost strategy is

A、
A、 whether the product is strongly differentiated or weakly differentiated from rivals.
B、
B、 the degree of bargaining power that buyers have.
C、
C、 the size of the buyer group that a company is trying to appeal to.
D、
D、 the type of value chain being used to achieve a low-cost competitive advantage.
E、
E、 the number of upscale attributes incorporated into the product offering.