An organization has added a custom Outlook form containing a new message class.
Which steps must the administrator perform to ensure the new message class is archived from user mailboxes?
A . add the message class to Directory > Properties and then include it on the appropriate Mailbox Policies
B . add the message class to Directory > Properties and then include it on the appropriate Desktop Policies
C . add the message class to Site > Properties and then include it on the appropriate Mailbox Policies
D . add the message class to Site > Properties and then include it on the appropriate Desktop Policies
Answer: A