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': 'DICOM is \nSelect and explain. \nA. Image quality standards for all medical applications, B. Digital image receptor system, C. Computer designed cephalogram, D. Metal oxide semiconductors', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]