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': 'Which is not a deep heat therapy. \nSelect and explain. \nA. Sho wave diathermy, B. Infra Red, C. USG, D. Microwave', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Infra red', 'role': 'assistant'}]