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': 'All the following are indications for brain imaging in epilepsy, except - \nSelect and explain. \nA. Epilepsy starts after the age of 5 years, B. Seizures have focal features clinical, C. EEG shows a focal seizure source, D. Control of seizures is difficult', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]