A vice president at a manufacturing organization is concerned about desktops being connected to the network. Employees need to log onto the desktops` local account to verify that a product is being created within specifications; otherwise, the desktops should be as isolated as possible. Which of the following is the BEST way to accomplish this? 

Answer options:

A. Put the desktops in the DMZ.
B. Create a separate VLAN for the desktops.
C. Air gap the desktops.
D. Join the desktops to an ad-hoc network.

C