This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy, Subject name: Anatomy
[{'content': 'Which of the following is a branch of 3rd part of subclavian artery? \nSelect and explain. \nA. Thyrocervical trunk, B. Dorsal scapular artery, C. Vertebral artery, D. Internal thoracic artery', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B Dorsal scapular arteryRef: Netter's Clinical Anatomy, 3rd ed. pg. 504* Dorsal scapular artery is a branch of 3rd part of subclavian artery.", 'role': 'assistant'}]