Final Answer:
The word that means the process of recording the electrical activity of the brain is d. Electroencephalography.
Step-by-step explanation:
Electroencephalography (EEG) is the process of recording the electrical activity of the brain. This medical technique involves placing electrodes on the scalp to detect and record the electrical impulses generated by neurons in the brain. EEG is valuable in diagnosing various neurological conditions and studying brain function.
The term "Electrocardiogram" (ECG or EKG) is related to the recording of the electrical activity of the heart, not the brain. "Electrocardiography" is the process of creating an electrocardiogram.
"Cranioelectrogram" and "Encephalogram" are not standard terms used in the context of recording the electrical activity of the brain. The correct term for this purpose is Electroencephalography (EEG), making option d the accurate choice.
In conclusion, option d, Electroencephalography, specifically refers to the process of recording the electrical activity of the brain, distinguishing it from the other options provided.