An employee is attempting to wipe out data stored on a couple of compact discs (CDs) and digital video discs
(DVDs) by using a large magnet. You inform him that this method will not be effective in wiping out the data
because CDs and DVDs are ______________ media used to store large amounts of data and are not affected
by the magnet.

A.
logical

B.
anti-magnetic

C.
magnetic

D.
optical