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: Pharmacology
All are true of paracetamol poisoning expect? 
Select and explain. 
A. Acetylcysteine in antidote, B. Asymptomatic for 24 to 30 hours, C. 10 mg is safe dose, D. Acetylcysteine block glutathione in paracetamol poisoning
B: Asymptomatic for 24 to 30 hours
Answer: B: Asymptomatic for 24 to 30 hours 
Explanation: None