Backing up data with external hard drives or off-site services

A) is an important thing to do.
B) is illegal.
C) cannot be done with confidential information.
D) None of these choices is correct.

Backing up data, whether on external hard drives or through off-site services, is a crucial practice for safeguarding information against loss, theft, or damage. It is not illegal, and confidential information can be backed up with appropriate security measures in place.