Concerning e-mails, or electronic communications being sent to clients, all of the following are false except: (a) as long as the number of clients receiving the e-mail does not exceed 25 or more existing clients principal approval is not necessary. (b) as long as the sender of the electronic communication is properly trained, review is not necessaryat anytime before such communications are sent. (c) since e-mail is not considered a formal form of communication, no review is ever necessary. (d) all e-mails must be reviewed prior to issuance by a principal.