Chantal Owns a Hairdressing Salon Which Caters to Two Main

Chantal owns a hairdressing salon which caters to two main groups of customers: residents of "The Chateau," a retirement community, and other residents in the neighborhood. Figure 15-17 shows the demand curves for the residents of the retirement community, labeled Market A, and other residents in the neighborhood, labeled Market B. The demand curves are not identical.
-Refer to Figure 15-17. Which group of customers is likely to have a more elastic demand curve (more sensitive to price) ?

A) the other residents of the neighborhood-market B
B) There is no difference in the elasticity of demand between the two groups.
C) the customers from "The Chateau"-market A
D) There is insufficient information to answer this question.