Which of the Following Is(are) Possible Internet Approaches for a Retailer

Which of the following is(are) possible Internet approaches for a retailer?

A) Using its Web site to supplement its brick-and-mortar stores.
B) Using its Web site to complement its stores and catalogs.
C) Using its Web site to be more efficient than competitors.
D) Using its Web site to focus on the specific needs of its target customers.
E) All of the above.