One Key Feature of the Value of a Brand Is

One key feature of the value of a brand is that:

A) it often protects the firm from competition and price competition.
B) it no longer needs to be supported by advertising and promotion.
C) if it becomes a generic name,the brand is worth even more.
D) it cannot be successfully imitated by a retailer's own brand.
E) competitors will frequently abandon a sector altogether rather than compete.