A customer with OS X Lion installed has decided to give their Mac to a friend. How can they
easily erase their hard drive and reinstall OS X Lion?
A. They should use a OS X Lion Install DVD, start up from it and choose the erase and install
option.
B. They must use target disk mode and perform the erase and install option in OS X Lion from another Mac.
C. They should start up to the Recovery HD, use the Disk Utility to erase the hard drive volume, then choose the Reinstall OS X option.
D. They should use a Snow Leopard Install DVD, startup from it and erase the hard drive using the Disk Utility. After installing Snow Leopard, creating a new user, and running software updates; they will then download OS X Lion from the Mac App Store.
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OS X Lion: About Lion Recovery