What Is the Advantage to a National Retailer to Sell

What is the advantage to a national retailer to sell private labels?

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,the costs are covered by the consumer.
C) Since nationwide stores carry the private brands,it gives little choice to the consumer about assortments.
D) Since it is a national retailer,customers will naturally know the private label.
E) By selling private labels,the national retailer can differentiate their assortments.