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
Clouding of Consiousness is seen in: 
Select and explain. 
A. Dementia, B. Delirium, C. Delusion, D. Hallucination
B: Delirium
Answer: B: Delirium 
Explanation: Delirium