A technician suspects that an application’s preference file is causing the app to crash at launch.
Which of the following techniques would be best to confirm the issue?

A.
Use a Time Machine backup to restore the entire User folder.

B.
Delete the application, reinstall it, then try launching it again.

C.
Startup from OS X Recovery, open Disk Utility and repair the startup disk.

D.
Use “Go to Folder…” or press the Option key to access the user library, move the suspected preference file to the desktop and then try launching the application.