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': 'Soap bubble calcification is a feature of \nSelect and explain. \nA. Toxoplasmosis, B. Paragonimus cyst, C. Corpus callosal Lipoma, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Soap bubble calcification - Paragonimus cyst.\nBracket calcification - Corpus callosal\xa0Lipoma.', 'role': 'assistant'}]