Which of the Following Is a Direct Form of Price

Which of the following is a direct form of price competition?

A) Family Dollar Store carries the same Palmolive dishwashing detergent as Triangle Supermarket, but at a 15 percent lower price.
B) Piggly-Wiggly supermarkets pay double the face value of any coupons used in their stores.
C) A retailer closes its store and opens an Internet retailing site to reduce its fixed costs.
D) McRae's department store runs a 50-percent-off sale on its Healthtex toddler clothes.
E) Office Depot offers free software with every computer purchased.