You are the system administrator for an electronics manufacturing company. The accounting department uses Windows 98 computers. The department has purchased a third-party spreadsheet application that only runs on Windows 2000 Professional. You need to upgrade the computers to Windows 2000 Professional and install the new application. You choose an unattended installation method for both the operating system and the application.  The Windows 2000 Professional installation files reside on a server named Companyrv in a shared folder name W2Ksource. You place the installation files for the spreadsheet application in //Companyrv/W2Ksource/i386/$OEMS$. You create an answer files named Acctanswer.txt and place in //Companyrv/W2Ksource. You map drive letter H: to //Companyrv/W2Ksource and begin the installation on a test computer by running the winnt32 /s:H:/i386/u:H:/acctanswer.text command. Windows 2000 Professional is installed successfully. However, the spreadsheet application is not installed. You want to ensure that the spreadsheet application is installed during the unattended installation.  What should you do? （）

• A、 Run the winnt /s:H:/i386 /u:H:/acctanswer.txt command instead of the winnt32 /s:H:/i386/u:H:/acctanswer.text command. 
• B、 Move the spreadsheet application installation files to //Companyrv/W2Ksource/i386, and thenrun the winnt /s:H:/i386 /u:H:/acctanswer.txt command. 
• C、 Edit the [Unattended] section of the answer file to contain the parameter OemPreinstall = Yes, and then run the winnt32 /s:H:/i386/u:H:/acctanswer.text command. 
• D、 Rename Acctanswer.txt to Unattend.txt, and then run the winnt32 /s:H:/i386 /u:H:/unattend.text command.