Dr. Ramirez is a sleep researcher who records the rhythmic electrical patterns of the brain. A) EEC B) MRI scans C) PET scans D) monitoring blood levels

The correct answer is letter A

Recording brain waves on an electroencephalograph (EEG)

Electroencephalogram (EEG) or electroencephalography is an examination that allows the study of the graphic recording of spontaneous electrical currents emitted in the brain, through electrodes applied to the scalp, the brain surface or even inside the brain substance.