B vs E

@sb The second paragraph gives you the explanation the point of polyarchy, and lines 27-32 give the most direct answer. In line 29, it says that the parties do not ask what the majority wants but caters to particular groups. (E) suggests that representatives are merely supposed to mirror the popular sentiment of the electorate, but (B) recognizes that parties cater to particular groups rather than trying to reflect an over-arching majority.

Thanks, Christopher!