The correct answer is A. Copy DOS system files to new disk.
The SYS command is used to copy the DOS system files to a new disk. This is useful if you want to create a bootable disk or if you want to copy the system files to a different disk for backup purposes.
The SYS command can be used with the following syntax:
SYS drive:
Where drive: is the drive letter of the disk that you want to copy the system files to.
For example, to copy the system files to the A: drive, you would type the following command:
SYS A:
The SYS command will copy the following files to the specified disk:
- IO.SYS
- MSDOS.SYS
- COMMAND.COM
- AUTOEXEC.BAT
- CONFIG.SYS
If the specified disk does not have enough space to store all of the system files, the SYS command will fail.
The SYS command is a powerful tool that can be used to create bootable disks and to back up your system files. However, it is important to use it carefully, as it can damage your computer if used incorrectly.