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
[{'content': 'Which of the following behavioral problems would suggest an organic brain lesion : \nSelect and explain. \nA. Visual hallucinations, B. Formal thought disorder, C. Auditory hallucinations, D. Depression', 'role': 'user'}, {'content': 'Answer: A \nExplanation: While the majority of hallucinations reported in primary psychotic disorders are auditory, they may also be visual, olfactory, tactile, or gustatory.\nVisual hallucinations have been reported in 16% – 72% of patients with schizophrenia and schizoaffective disorder.', 'role': 'assistant'}]