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 affection by Rh antibody are all except: \nSelect and explain. \nA. Nonimmune hydrops fetalis, B. Icterus gravis neonatorum, C. Congenital anaemia of the newborn, D. Fetal death', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Immune hydrops fetalis and not nonimmune hydrops fetalis is a complication of Rh negative pregnancy.', 'role': 'assistant'}]