This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood Vessels of Abdomen and Pelvis, Subject name: Anatomy
[{'content': 'Left ovarian artery is the branch of? \nSelect and explain. \nA. Abdominal aorta, B. Inferior iliac artery, C. External iliac artery, D. Inferior epigastric artery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Abdominal aortaREF: Grays Anatomy 40th ed Ch 102Both right and left gonadal (testicular and ovarian) arteries arise anteriorly from the aorta a little inferior to the renal arteriesThe right gonadal vein opens into the inferior vena cava at an acute angle just inferior to the level of the renal veins, and the left gonadal vein opens into the left renal vein at a right angle', 'role': 'assistant'}]