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': 'In rectus sheath which branch of aorta make anastomosis with superior epigastric artery - \nSelect and explain. \nA. Subclavian artery, B. External iliac artery, C. Internal iliac artery, D. External carotid A', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The superior epigastric artery is a branch of the internal thoracic artery and the inferior epigastric artery is a branch of the external iliac artery. Superior and inferior epigastric arteries anastomose in the rectus sheath.', 'role': 'assistant'}]