Which of the Following Is NOT a Sign That an E-Mail

Multiple Choice

Which of the following is NOT a sign that an e-mail or chain letter contains a virus?

A) The e-mail message contains all capital letters or dozens of exclamation points.
B) The message comes with an attachment, and you don't know who it is from.
C) The message encourages you to keep the information confidential.
D) All of the above are true.