You are the administrator of your company’s network. You use your Windows 2000 Professional computer to transfer 20 large files. Each file is 100 MB in size. You want to copy the files from a UNIX server in your branch office to a computer running  Microsoft SQL Server at the main office.  When you copy the files by using Windows Explorer, the connection appears to time out and the  file copy is aborted. You suspect that you are encountering a TCP/IP performance problem. Your network connection is shown in the Xircom LAN Properties dialog box in the exhibit. You want to monitor the performance of TCP/IP of your computer. What should you do? （）

• A、Install the Network Monitor Agent.  Use the Performance console to view all the counters of the TCP object. 
• B、Install the Network Monitor Agent.  Use the Performance console to view the Fragmented Datagrams/sec counter. 
• C、Install SNMP.  Use the Performance console to view all the counters of the TCP object. 
• D、Install Simple TCP/IP Services.  Use the Performance console to view the Fragmentation Failures counter.