This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Alcoholic blackouts are seen at levels of alcohol in blood 
Select and explain. 
A. 20-30 mg/dL, B. 80-200 mg/dL, C. 200 - 300 mg/dL, D. > 300 mg/dL
C: 200 - 300 mg/dL
Answer: C: 200 - 300 mg/dL 
Explanation: Acute Alcohol Intoxication:



Blood Alcohol concentration
Symptoms


20 - 30 mg / dL
Decreased concentration decreased motor performance


30 - 80 mg/dL
Signs of intoxication appears, worsening of motor symptoms and thinking ability.


80 - 200 mg /dL
Incordination


200 - 300 mg / dL
Alcohol blackout
			(Anterograde Amnesia)


> 300 mg / dL
Coma & Death.