In the Windows operating systems, deleting a file from the Recyle Bin performs which of the following actions on the data stored on the surface of the medium?

a. Nothing happens to the data at this point. It is simply moved from the original folder to a hidden folder in the Recycle Bin.
b. Nothing happens to the data at this point. The allocation marker for the file is simply reset.
c. A random deluge of zeroes and ones is copied over the original data.
d. The entry for the file is purged from the $MFT metadata file in the file system.

b.