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 Hb is different from HBA in that it is : \nSelect and explain. \nA. More sensitive to alkali denaturation, B. More resistant to alkali denaturation, C. More sensitive of acid denaturation, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: More resistant to alkali denaturation', 'role': 'assistant'}]