单项选择题

A. Copy the service pack files to the InstallFiles\Misc folder. 
B. Copy the service pack file sot the InstallFiles\$OEM$ folder. 
C. From an existing client computer, run the update –u command from the service pack to the  Install Files folder. 
D. From an existing client computer, run the Update –s:InstallFiles command from the service  pack to the InstallFiles folder.