Your mobile device runs the latest version of the Microsoft Windows Mobile operating system.  Your mobile device supports the use of Bluetooth and Infrared （IR） for data synchronization. You need to configure data synchronization on your computer to only use Bluetooth.  Which three actions should you perform？（）

• A、Clear the Allow USB connections check box.
• B、Select the Allow USB connections check box.
• C、Select the Bluetooth option from the drop down list.
• D、Clear the Allow connections to one of the following check box.
• E、Select the Allow connections to one of the following check box.
• F、Install the latest version of Microsoft ActiveSync on the computer and perform an initial sync.