The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Left superior intercostal vein drains into ?   (A) Azygous vein   (B) Hemiazygous vein   (C) Brachiocephalic vein   (D) Internal thoracic vein
['(C) Brachiocephalic vein <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Azygous vein \n (B) Hemiazygous vein \n (C) Brachiocephalic vein \n (D) Internal thoracic vein <> possible answers', '  Left superior intercostal vein drains into ? <> context@']