Which of the Following Statements Presents a Reason for Using

Which of the following statements presents a reason for using comparative advertising?

A) Comparative advertising prevents a new market entrant from positioning itself against established brands.
B) Comparative advertising is a way of helping position a brand in the evoked or choice set of alternatives that consumers consider.
C) Comparative advertising may be perceived as less credible than non-comparative ads.
D) Comparative advertising does not work for market leaders.
E) Comparative advertising is generally permitted by the Federal Trade Commission.