This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid, Subject name: Surgery
[{'content': 'A young patient has a midline, tender swelling in neck occurring after an attack of sore throat. The diagnosis is: \nSelect and explain. \nA. Acute thyroiditis, B. Thyroglossal cyst, C. Subacute thyroiditis, D. Toxic goiter', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Diagnosis in this case is acute thyroiditis. Acute thyroiditis is preceded by respirstory symptoms like sore throat and in young patient.', 'role': 'assistant'}]