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
All of the following are true about delirium except : 
Select and explain. 
A. It is the most common organic brain disorder, B. Generalized slowing of waves are seen in EEG, C. Auditory hallucinations are more commonly present, D. Sundowning phenomenon is seen
C: Auditory hallucinations are more commonly present
Answer: C: Auditory hallucinations are more commonly present 
Explanation: Visual hallucinations are the common perceptual disturbance seen in Delirium.