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: Forensic Medicine
[{'content': "All are true regarding hallucinations, except: AIIMS 09 \nSelect and explain. \nA. Represents a state of inner mind's spatial orientation, B. Independent of the observer, C. Under voluntary control, D. Perception which occurs in the absence of stimulus", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Under voluntary control', 'role': 'assistant'}]