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: Gynaecology & Obstetrics
[{'content': 'Fetal scalp blood Ph is used to determine : \nSelect and explain. \nA. IUGR, B. Fetal hypoxia, C. Fetal diabetes, D. Estimation of alpha feto protein', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fetal hypoxia', 'role': 'assistant'}]