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': 'All are typical intercostal nerves except \nSelect and explain. \nA. 2nd, B. 3rd, C. 4th, D. 5th', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Upper two intercostal nerves also supply the upper limb,third to sixth supply only the thoracic wall.so they are called typical intetcostal nerves. . B D CHAURASIA&;S HUMAN ANATOMY UPPER LIMB THORAX-VOLUME-1 SIXTH EDITION Page no:217', 'role': 'assistant'}]