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: Anatomy
[{'content': 'Inferior thyroid vein drains into - \nSelect and explain. \nA. Internal jugular vein, B. Superior vena cava, C. Brachiocephalic vein, D. External jugular vein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Venous drainage of the thyroid:-\n\nSuperior thyroid vein - Drains into an Internal jugular vein.\nMiddle thyroid vein - Drains into the internal jugular vein.\nInferior thyroid vein - Drains into a Left brachiocephalic vein.\nFourth thyroid vein of Kocher - Drains into the internal jugular vein.', 'role': 'assistant'}]