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: Radiology
[{'content': 'Apical root fracture is visible in \nSelect and explain. \nA. Intra-oral periapical X-ray, B. Bite-wing X-ray, C. Occlusal X-ray, D. OPG', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]