Your network contains one Exchange Server 2010 SP1 Client Access server named Server1.
You have a user named User1.
You need to limit the size of the attachments that User1 can download by using Windows Mobile 6.5 devices.
What should you do first?
A. Create a new Exchange ActiveSync device access rule.
B. Create a new managed content settings.
C. Modify the message size restriction for user1.
D. Create new Exchange ActiveSync mailbox policy.
