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
A patient semiconscious with altered sensorium with visual hallucination and fragmented delusions is suffering from, which of the following disorder - 
Select and explain. 
A. Delirium, B. Delusion, C. Schizophrenia, D. Mania
A: Delirium
Answer: A: Delirium 
Explanation: This patient has :- i) Altered sensorium, ii) Visual hallucination, iii) Semiconscious, iv) Fragmented delusions.
All can occur in delirium.
In schizophrenia, mania and demention consciousness and orientation is usually normal.