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: Pathology
[{'content': 'To study the malignant tumour of the jaw bone, the radio-nuclide used is \nSelect and explain. \nA. Gallium 67 citrate, B. Technitium 99m labelled iodine, C. Technitium 99m per technitate, D. Technitium 99m methylene diphosphate (MDP)', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]