You have included a check box on a registration Web page that users accessing your site can
select to receive periodic bulk e-mail from your company. What must you include in your bulk e

mail messages to your subscribers?

A.
A section in which recipients can provide feedback about the company

B.
Coupons for product specials that can be printed and redeemed on future purchases

C.
An opt-out option to discontinue receiving the messages

D.
An opt-in option to receive similar messages from related companies