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': 'Hypoxia induced metabolic acidemia is when \nSelect and explain. \nA. Umbilical artery blood pH < 7.00, B. HCO3 - concentration > 17.7 mmoI / L, C. Base deficit < 12 mmoI/L, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hypoxia induced metabolic acidosis\xa0in newborn\nUmbilical artery pH < 7.0\nHCO3- concentration > 17.7 mmoI / L\xa0\nBase deficit > 12 mmoI / L', 'role': 'assistant'}]