Macy's, Kohl's, and JCPenney practice a retailing pricing strategy called "high$-$low pricing." Which of the following correctly describes high$-$low pricing?

A$.$ Retailers do not have to use promotions.

B$.$ Some products are priced high, others are priced low, and still others are priced at bargain$-$basement level

C$.$ Retailers charge an everyday low price with no special promotions.

D$.$ The retailer charges higher prices on an everyday basis, coupled with frequent sales and other price promotions.

E$.$ The retailer does not have to run sales on selected items.