George Has Agreed to Participate in a Memory Experiment Where

George has agreed to participate in a memory experiment where both the structure of his brain and the brain activity will be captured as he performs various memory tasks. He has been assured he will not be exposed to X-rays and the procedure is relatively non-intrusive. George will be having

A) electroencephalogram (EEG)
B) neuropsychological tests
C) positron emission tomography (PET) scan
D) functional magnetic resonance imagining (fMRI)