Spam Is Generally Known as a (An)

Spam is generally known as a (an)

A) Process of converting readable data into unreadable characters to prevent unauthorized access
B) Encrypted code that a person, Web site, or company attaches to an electronic message to verify the identity of the message sender
C) Exclusive rights given to the person to use e-mail addresses
D) Unsolicited e-mail message or newsgroups posting sent to many recipients or newsgroups at once
E) None of the above