Which of the Following Is True

Which of the following is true?

A) Buyers always prefer to buy from a salesperson than to buy over the Internet.
B) Sellers do not usually save money if buyers buy from their web-sites.
C) Buyers do not save money when they purchase over the Internet.
D) Both the buyer and seller save money if the buyer buys from the seller's web-site.
E) Both A & D are true.