Answer:
C. EEG (Electroencephalogram)
Explanation:
An electroencephalogram (EEG) is a test used to find problems related to electrical activity of the brain.
Contact tracers quickly locate and talk with the patients, assist in arranging for patients to isolate themselves, and work with patients to identify people with whom the patients have been in close contact so the contact tracer can locate them.
The answer to your question is B) one third.
