A customer with Os X Mountain Lion installed has decided to give his Mac to his son. How can he easily erase the hard disk and reinstall OS X Mountain Lion?

A.
He should buy a OS X Mountain Lion USB drive from Apple, start up from it and choose the erase and install option in the installer.

B.
He must use target disk mode and perform the erase and install option in OS X Mountain Lion from another Mac.

C.
He should start up to OS X Recovery, use Disk Utility to erase the hard disk’s volume, then choose the Reinstall OS X option.

D.
He should use a OS X Lion USB Drive, startup from it and erase the hard disk using Disk Utility.
After installing OS X Lion, creating a new user, and installing software updates; he will then download OS X Mountain Lion from the Mac App Store.