In Which of the Following Market Circumstances Is a Broad

In which of the following market circumstances is a broad differentiation strategy generally NOT well-suited?

A) when buyer needs and preferences are too diverse to be fully satisfied by a standardized product
B) when few rivals are pursuing a similar differentiation approach
C) when the products of rivals are weakly differentiated
D) when there are many ways to differentiate a product or a service and many buyers perceive these differences valuable
E) when technological change is fast-paced and competition revolves around rapidly evolving product features