You are creating a Windows application by using the .NET Framework 3.5. The application will be 
installed on Windows Vista client computers. 
Your application will log usage information. 
Users with non-administrative privileges must be able to log the information. 
You need to identify a logging strategy. 
Which strategy should you use? 
A.
Write the log information to the system event log. 
B.
Write the log information to a file in the %LOCALAPPDATA% directory. 
C.
Add entries to a custom event log. Create the custom log if it does not exist. 
D.
Write the log information to a file in the %windir%\system32\logfiles directory.