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
Delirium and schizophreinia differ from each other by: 
Select and explain. 
A. Change in mood, B. Complete consciounsness, C. Tangenital thinking, D. All
B: Complete consciounsness
Answer: B: Complete consciounsness 
Explanation: B. i.e. Complete consciousness