You started up a Mac from its OS X Recovery partition to complete a task. When you restarted, the Mac

started up from the OS X Recovery partition again. How can you configure it to start up from a different volume?

A.
Choose Disk Utility from the Apple menu, and select a startup volume.

B.
Choose Startup Disk from the Apple menu, and select a startup volume.

C.
Choose Startup Disk in the OS X Utilities window, and select a startup volume.

D.
Choose Terminal from the Utilities menu, type startupdisk -[volume name] and press Return.