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 features of hallucinations, except: 
Select and explain. 
A. It is independent of the will of the observer, B. Sensory organs are not involved, C. It is as vivid as that in a true sense perception, D. It occurs in the absence of a perceptual stimulus
B: Sensory organs are not involved
Answer: B: Sensory organs are not involved 
Explanation: B i.e. Sensory organs are not involved