The correct answer is D. Files are not stored in consecutive clusters.
A fragmented hard drive is a hard drive where the files are not stored in consecutive clusters. This can happen when files are deleted and new files are created, or when files are moved around. When files are fragmented, it takes longer for the hard drive to read and write them, which can slow down your computer.
Option A is incorrect because the platters are the physical disks inside the hard drive. If the platters are bad, the hard drive will not work.
Option B is incorrect because data files can be corrupted for a variety of reasons, not just fragmentation.
Option C is incorrect because clusters of data are not damaged by fragmentation.
Option E is incorrect because fragmentation is a real problem that can slow down your computer.