You work as the enterprise exchange administrator at TestKing.com. TestKing.com makes use of Microsoft Exchange Server messaging solution. The TestKing.com network consists of a single Active Directory domain named testking.com. TestKing.com is configured to run in an Exchange Server 2010 environment.You have receive dinstructions from the CIO to install public folders access that will ensure that users in the admin department is able send e-mail messages to public folders as well as post documents in the public foldersusing Outlook Web App （OWA）. To accomplish this task you need to recommend to appropriate changesto management. What should you do？（）

A. You should consider changing the OWA segmentation settings.
B. You should consider changing the public folder client permissions.
C. You should consider changing the public folder administrative permissions.
D. You should consider changing the mailbox permissions.