What physical security control would be used to broadcast false emanations to mask the presence of true electromagentic emanations from genuine computing equipment?

What physical security control would be used to broadcast false emanations to mask the presence of true electromagentic emanations from genuine computing equipment?
A . Faraday cage.
B . Unshielded cabling.
C . Copper infused windows.
D . White noise generation.

Answer: B