This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Fetal anemia is detected on Doppler of : \nSelect and explain. \nA. Uterine aery, B. Umbilical aery, C. Middle cerebral aery, D. Any of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In fetal anaemia due to Rh ISO immunization,the peak systolic velocity in the middle cerebral aery is increased. refer pgno:513 sheila textbook of obstetrics 2 nd edition', 'role': 'assistant'}]