You work as a network exchange administrator at Company.com.the Company.com network currently consists of a single active directory forest containing a single domain named Company.com.the Company.com organization makes use of microsoft exchange server 2010 as their messaging solution.The Company.com organization currently makes use of a computer named -ex01 which hosts a single mailbox database named kingdatabase which contains 250 mailboxes.During the course of the business week you receive instruction from Company.com to ensure that a warning message is issued when a mailbox exceeds 2 gb whilst ensuring your solution uses the least amount of administrative effort. What should you do？（）

• A、you should consider having the options on the messaging records management （mrm） tab configured from the properties of -ex01.
• B、You should consider having the properties of the Entire Mailbox managed folder configured from Managed Default Folders.
• C、You should consider having the options on the Limits tab configured from the properties of KingDatabase.
• D、You should consider having the storage quotas modified from the properties of each mailbox.