This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Antenatal diagnosis can be made from all the following except \nSelect and explain. \nA. Foetal blood, B. Maternal blood, C. Amniotic fluid, D. Decidua', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Deciduae - the endometria lining of the uterus is called decidua during pregnancy, and it is shed after delivery, and no role for antenatal diagnosis.', 'role': 'assistant'}]