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 you delete files, add new files, or move files around. When a file is fragmented, it is stored in multiple locations on the hard drive. This can slow down your computer because the hard drive has to move the read/write head around more to access the different parts of the file.
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 are not corrupted. The files are still there, but they are not stored in consecutive clusters.
Option C is incorrect because clusters of data are not damaged. The clusters are still there, but they are not stored in consecutive order.
Option E is incorrect because option D is the correct answer.