How Does a National Retailer Benefit from Selling Private-Label Brands

How does a national retailer benefit from selling private-label brands?

A) The retailer spends less on advertising private-label brands and therefore saves money.
B) Since the retailer carries the cost of advertising of a private-label brand, the costs are covered by the consumer.
C) Since nationwide stores carry the private-label brands, it gives little choice to the consumer about assortments.
D) Since it is a national retailer, customers will naturally know the private-label brand.
E) By selling private-label brands, a national retailer can differentiate its assortments.