This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nuclear Medicine, Subject name: Radiology
[{'content': 'In radionuclide imaging, the most useful pharmaceutical agent for skeletal imaging is___: \nSelect and explain. \nA. Gallium 67, B. Technetium 99 linked to MDP, C. Technetium-Sulphur colloid, D. Technetium 99m', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Technetium 99 linked to MDPMDP (Methyl diphosphonate) adsorbs into the hydroxyapatite crystals and gets accumulated in the areas of active bone formation which can be detected by nuclear imaging.', 'role': 'assistant'}]