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': 'In radionuclide imaging the most useful radio pharmaceutical for skeletal imaging is: \nSelect and explain. \nA. Gallium 67 (67Ga), B. Technetium-sulphur-colloid (99mTc-Sc), C. Technetium-99m (99mTc), D. Technetium-99m linked to Methylene dis-phos-phonate (99mTc-MDP)', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Technetium-99m linked to Methylene dis-phos-phonate (99mTc-MDP)', 'role': 'assistant'}]