Mike’s iMac starts, but stops responding before it reaches the login screen. He does not have a recent backup of his data. You would like to help Mike verify the
startup 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 OS X Recovery and use Terminal.

C.
Start the iMac from OS X Recovery and use Disk Utility.

D.
Start up in single-user mode and type the /sbin/fsck -fy command.