The correct answer is letter A.
Explanation: Electroencephalography or EEG examination is nothing more than the graphic record of the electrical currents in our brain.
The examination consists of the fixation of electrodes in predefined positions on the patient's scalp or fixation of the electrodes by the 10-20 system, an amplifier to increase the intensity of the brain pulses, a monitor to visualize the variations of the pulses and a printer. to issue a report.