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': 'Hemolytic disease of newborn is least common with which blood group female - \nSelect and explain. \nA. A, B. B, C. 0, D. AB', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., OABO incompatibility has a protective effect to the development of Rh sensitization and thus the development of hemolytic disease of newborn", 'role': 'assistant'}]