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: Medicine
[{'content': 'Impotence is a feature of which of the following : \nSelect and explain. \nA. Multiple sclerosis, B. Poliomyelitis, C. Amyotropic lateral sclerosis, D. Meningitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Multiple sclerosis): Multiple sclerosis is associated with erectile dy.slitnction or impotence. Neurological disorders associated with Erectile dysfunction include: Spinal cord injury Multiple sclerosis Peripheral neuropathy', 'role': 'assistant'}]