You are the network administrator for Company.Company has just upgraded its network switches from 10 Mbps to 100 Mbps. After the upgrade， you findthat the 100 Windows 2000 Professional computers on the network are still communicating at only 10Mbps. Company uses NWLink as the only network protocol.You want to enable the computers to communicate at 100 Mbps.What should you do？（）

• A、Replace the network adapters with 10/100 Mbps network adapters. 
• B、Enable TCP/IP on all of the computers on the network.
• C、Configure the NWLink frame type of the network adapters to be Ethernet II. 
• D、Configure the NWLink frame type of the network adapters to be Ethernet 802.3.