This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
The EEG cabins should be completely shielded by a continuous sheet of wire mesh of copper to avoid the picking of noise from external electromagnetic distrubances. Such a shielding is called as - 
Select and explain. 
A. Maxwell cage, B. Edison's cage, C. Faraday cage, D. Ohm's cage
C: Faraday cage
Answer: C: Faraday cage 
Explanation: None