This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Upper two posterior intercostal aeries arise from \nSelect and explain. \nA. Aoa, B. Superior intercostal aery, C. Internal mammary aery, D. Bronchial aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: First and second posterior intercostal aeries arise from superior intercostal aery B D CHAURASIA&;S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME-1 SIXTH EDITION,Page no-219', 'role': 'assistant'}]