You administer Company's network that consists of 20 Windows 2000 Professional computers configured with default networking settings. Company can not for the moment afford a permanent Internet connection for the network so you do have a single dial-up account to a local Internet Service Provider (ISP). A client computer named Company1 has a 56-Kbps modem installed. You configure a dial-up connection to the ISP on Company1. You want all of the computers to be able to access the Internet when Web resources are requested. What should you do? （）

• A、Configure the dial-up connection to enable Internet Connection Sharing and on-demand dialing.
• B、Configure the dial-up connection to enable Internet Connection Sharing and disable on-demand dialing
• C、Configure the dial-up connection to disable Internet Connection Sharing and enable on-demand dialing.
• D、Configure the dial-up connection to disable Internet Connection Sharing and on-demand dialing