I would say a. Unintentional
Explanation:
In humans, the brain accounts for ~2% of the body weight, but it consumes ~20% of glucose-derived energy making it the main consumer of glucose (~5.6 mg glucose per 100 g human brain tissue per minute.
Well, detoxification is the psychological or medicinal removal of toxic substances from a living person. It is mainly done by the liver. But there is a thing called alcohol detoxification. This is the process by which an alcoholic's system is brought back to it's normal state. Hope i helped. Have a nice day.