Alex is working for Alpha Technology as a system administrator. The enterprise's sales team uses multiple external drives, often containing confidential data, that they carry between their offices and their clients' offices. What should Alex do to ensure that data is secure if it is stolen or lost, and why?

A: Use steganography because it gives remote access to the drive, and Alex can remotely disable the drive.

B: Use HSM because it allows Alex to track the device and stop the user from using the device.

C: Implement blockchain in the enterprise because it allows Alex to access the drive's location and remotely disable it.

D: Use encrypted USBs in the enterprise because they automatically encrypt the information and give Alex remote access to the drive to monitor and disable the user.