单项选择题

A.Create a Personal Archive for each user and then create a retention policy.Instruct users to compact the OST file.
B.Create a personal folder (PST) file for each user.Store all PST files on a network share. Instruct users to compact the OST file.
C.Create a second disabled user account and a second mailbox for each user.Configure Journal rules to journal all the messages for each user to the users second mailbox
D.Create a new disabled user account and a new mailbox named Journaling Mailbox. Configure journal rules to journal all the messages for each user to Journaling Mailbox.