This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic mental disorders, Subject name: Psychiatry
[{'content': 'Biological Amnesia is \nSelect and explain. \nA. Presenile Dementia, B. Lack of interest, C. Opioid drug addiction, D. Hypothyroidism', 'role': 'user'}, {'content': "Answer: A \nExplanation: Thiamine deficiency, hypoglycemia, hypoxia (including carbon monoxide poisoning), and herpes simplex encephalitis all have a predilection to damage the temporal lobes, paicularly the hippocampi, and thus can be associated with the development of amnestic disorders. The below image show major causes of amnestic disorders. Reference: Kaplan and Sadock's synopsis of psychiatry, 11th edition, page 719.", 'role': 'assistant'}]