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
MC cause of delirium ? 
Select and explain. 
A. Infection, B. Liver failure, C. Belladonna poisoning, D. None of the above
A: Infection
Answer: A: Infection 
Explanation: Ans. A. InfectionInfection is one of the most common causes of delirium.