You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.The Company.com employees use Outlook Web App to have access to their e-mail.A new Company.com policy prohibits the employees from downloading ZIP files from Outlook Web App.The CIO wants the employees to use Microsoft Office Outlook to download ZIP files.What should you do？（）

• A、The best option is to set up an Outlook Web App Mailbox policy.
• B、The best option is to set up the Content Filter agent.
• C、The best option is to set up a managed folder mailbox policy.
• D、The best option is to set up the Attachment Filter agent.