When executed from a bootable hard drive, which command will make a formatted floppy disk bootable? A. COPY C:DOSCOMMAND.COM A: B. ATTRIB C:*.SYS A: C. XCOPY C:DOS*.* A: D. SYS C: A: E. None of the above

The correct answer is: D. SYS C: A:

The SYS command copies the system files from the hard drive to a floppy disk. This makes the floppy disk bootable.

The other options are incorrect because they do not copy the system files to the floppy disk.

• Option A: COPY C:DOSCOMMAND.COM A: copies the COMMAND.COM file from the hard drive to the floppy disk. However, this is not enough to make the floppy disk bootable.
• Option B: ATTRIB C:*.SYS A: changes the attributes of the system files on the hard drive. However, this is not enough to make the floppy disk bootable.
• Option C: XCOPY C:DOS. A: copies all of the files from the DOS directory on the hard drive to the floppy disk. However, this is not enough to make the floppy disk bootable.

Therefore, the correct answer is: D. SYS C: A: