Which extended property should you set?

You are working on a Windows XP Embedded Standard device. You add a shell component named MyShell to the device. You set the value of an extended property to invoke the shell. You need to create a custom shell component by using predefined system variables. Which extended property should you set?

A.
Name: MyShellFormat: StringValue: %ProgramFiles%\MyShell\

B.
Name: cmiShellPath Format: StringValue: %ProgramFiles%\MyShell\MyShell.exe

C.
Name: cmiShellPath Format: StringValue: %ProgramFiles%\MyShell\

D.
Name: MyShellFormat: StringValue: %ProgramFiles%\MyShell\MyShell.exe