This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Umblicial cord and diaphragm, Subject name: Anatomy
[{'content': 'Obliterated Umbilical Aery is continuation of:- \nSelect and explain. \nA. Anterior division of internal iliac aery, B. Posterior division of internal iliac aery, C. Superior vesicle aery, D. Inferior vesicle aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: During the intrauterine life the internal iliac aery is twice the length of external iliac aery and is the direct continuation of common iliac aery and reaches to the umbilicus along with the contralateral aery. At bih as the placental circulation ceases, only the pelvic pa remains patent as anterior division of internal iliac aery and pa of superior vesicle aery.', 'role': 'assistant'}]