David Is Assisting a User Who Needs to Configure the File

Multiple Choice

David is assisting a user who needs to configure the file extension settings on his computer. He wants to be able to distinguish between the different valid file types and any malicious scripts that pose as these file types. Which of the following should David instruct the user to do?

A) Select the Show hidden files and folders option button.
B) Select the Display the full path in the title bar check box.
C) Clear the Hide protected operating system files (Recommended) check box.
D) Clear the Hide extensions for known file types check box.