In the Age of Digital Communication, It Is Really Easy

In the age of digital communication, it is really easy to have conversations via e-mail. When conducting therapy with clients, it is important to consider that:

A) E-mail is not considered a "safe" method of communication.
B) If others were to read the e-mail, even by accident, it could violate privacy laws.
C) There is no way to guarantee the safety of e-mail communication.
D) All of the above