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: Dental
[{'content': 'The usual metabolic pathway of ingested fluoride involves urinary excretion primarily with the remaining portion found largely in: \nSelect and explain. \nA. Teeth, B. Muscle, C. Skeletal tissues, D. Liver', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]