In Assessing the Effectiveness of a Market Segmentation Approach, Differential

In assessing the effectiveness of a market segmentation approach, differential response is the

A) extent to which marketers are capable of designing programs that can effectively serve the market segment
B) extent to which market segments are easy to distinguish from each other and respond differently to company marketing strategies
C) degree to which segment consumer preferences are stable over time
D) ability to communicate with and reach the target market