This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'Spiral aery is a branch of \nSelect and explain. \nA. Uterine aery, B. Arcuate aery, C. Vesical aery, D. Ovarian aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Spiral aery are small aeries which temporarly supply blood to endometrium of the uterus during the leteal phase of the menstrual cycle.The spiral aries are conveed for uteroplacental blood flow during pregnancy. imageRef - Semantischolar.org', 'role': 'assistant'}]