Dollarama, a discount retailer, is thinking of launching a new line of luxury eyeglasses targeted to their existing customers using the Dollarama brand name. As they analyze the attractiveness of their customer segment they believe that they may have an issue with customers responding positively to this new product line. This would be an example of a concern within which base of segment attractiveness?

A. Substantial

B. Identifiable

C. Reachable

D. Responsive

E. Profitable