You work as the enterprise exchange administrator at Xxx .Xxx is using Microsoft Exchange Server 2010 as their messaging solution.What actions must you take to allow a user named Mia Hamm to access the resource mailbox？（）

• A、You must change the resource mailbox’s properties
• B、You must use log transactions
• C、You must use Outlook Protection Rules
• D、You must use the Set-Mailbox Mia Hamm -LitigationHoldEnabled $true