Which of These Is One of Three Rules for a Company

Multiple Choice

Which of these is one of three rules for a company to successfully employ permission marketing?

A) Opt-in customers will be guaranteed the lowest possible price for an item compared to similar products or services sold by its competitors.
B) The firm will never buy marketing lists from other companies that may contain their personal information.
C) Customers are assured that their name or buyer profile data will not be sold or shared with others.
D) Customers will receive a "30-day money-back guarantee if not 100 percent satisfied" for any product purchased online.
E) Customers will be protected from identity theft for any product purchased from its website.