Which of the following is the default directory for User Profiles in Windows XP?（）

A. C:\Profiles
B. C:\User Profiles
C. C:\Users\Profiles
D. C:\Users

A. Enable MAC filtering.
B. Download and install the latest firmware.
C. Disable DHCP.
D. Change the default password.

A.SFC
B.NSLOOKUP
C.NET USE
D.IPCONFIG