A corporate environment includes Exchange Server 2010 SP1. Client computers run Microsoft Outlook 2010.
You have the following requirements:

* Minimize the amount of effort required to apply retention tags to email messages.
* Ensure that the solution functions across all folders in a mailbox.

You need to recommend a solution that meets the requirements.

What should you recommend?

A.
Enable AutoTagging for mailboxes.

B.
Implement personal tags for each user s mailbox.

C.
Use the Managed Folder Assistant to process mailbox folders.

D.
Modify the retention policy tag by reducing the age limit for retention.