You are the network administrator for your company. All network servers run Windows Server 2003. Your network includes one branch office in addition to the main office. A server named Server1 connects the main office to the branch office by using an external dial-up modem. One morning, users report that the connection to the branch office is not functioning. On investigation, you discover that the modem is turned off. You restart the modem. Then you open Device Manager and see the information shown in the exhibit. (Click the Exhibit button.) You need to ensure that the connection between the main office and the branch office functions correctly. Your solution must involve the minimum amount of change to Server1 and the minimum amount of interruption in network service. What should you do? （）

• A、Restart Server1.
• B、Create a new dial-up connection to the branch office.
• C、Open Device Manager to scan Server1 for changes in hardware.
• D、Use the Add Hardware Wizard to detect and install the modem.