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': 'Film exposed to light during development will be \nSelect and explain. \nA. Blurred, B. dark, C. Light, D. reticulated', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]