Sasha,a Researcher,is Working on a Project on the Human Brain

Multiple Choice

Sasha,a researcher,is working on a project on the human brain.Part of her research requires her to place electrodes on the scalps of her subjects to study their brain-wave activity.In this scenario,Sasha is most likely using

A) an electroencephalograph (EEG) .
B) positron-emission tomography (PET scan) .
C) functional magnetic resonance imaging (fMRI) .
D) an echocardiogram (ECG) .