Online advertising involves the following categories, except:

IP security is a capability that can be added to either current version of the Internet Protocol by means of additional headers

Indicate whether the statement is true or false.

The following evidence of mailing must be purchased at the time of mailing; it is available for all basic classes of mail EXCEPT Express Mail and items must be presented at a post office or to a rural carrier

A) Return Receipt for Merchandise B) Delivery Confirmation C) Certificate of Mailing D) Certified Mail