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: Pediatrics
In a child with acute liver failure, the most impoant abnormal serum biochemical test that indicates poor prognosis is - 
Select and explain. 
A. Increasing transaminases, B. Increasing bilirubin, C. Increasing prothrombin timeApomorphine, D. None
D: None
Answer: D: None 
Explanation: Ans. is 'None'