Verify the volume, and repair it.

Joe’s iMac starts, but hangs before it reaches the login screen. Unfortunately, he does not have a recent backup of his data. You would like to help Joe verify the volume, and repair it only if necessary. What is the best way to accomplish this task?
A. Hold the shift key down to Safe Boot the iMac.
B. Start the iMac from the Recovery HD and use Terminal.
C. Start the iMac from the Recovery HD and use Disk Utility.
D. Start up in single-user mode and run the /sbin/fsck -fy command.
[toggle title_open=”Close Me” title_closed=”Answer” hide=”yes” border=”yes” style=”default” excerpt_length=”0″ read_more_text=”Read More” read_less_text=”Read Less” include_excerpt_html=”no”]C[/toggle]