It Is a Hard-Disk Failure That Occurs When a Read-Write

Multiple Choice

It is a hard-disk failure that occurs when a read-write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually irreparable damage to the magnetic media on the platter surface. Which of the following fits the above description?

A) Electrical Failure.
B) Bad Sector.
C) Bad Platter Area.
D) Head Crash.