This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Severity in acute hepatitis is best estimated by 
Select and explain. 
A. Serum bilirubin, B. PT, C. Alpha glutaryl transferase, D. Alkaline phosphate
D: Alkaline phosphate
Answer: D: Alkaline phosphate 
Explanation: Acute Alcoholic Hepatitis The pattern of liver test abnormality is hepatocellular. The AST is typically in the 100 to 200 IU/L range, even in severe disease, and the ALT level may be normal, even in severe cases. The AST level is higher than the ALT level, and the ratio is greater than 2:1 in 70% of patients. Ref Harrison20th edition pg 677