Your network contains a server named Server1 that runs Windows Server 2008 R2. Server1 has the File Services role installed. You configure a file classification rule. You discover that scanned documents stored as JPG files are not being classified. You need to ensure that all file classification rules apply to scanned documents. What should you do？（）

• A、Enable the Windows TIFF IFilter feature.
• B、Modify the properties of the file classification rule.
• C、Modify the properties of the Windows Search Service.
• D、Install the Office 2007 System Converter: Microsoft Filter Pack.