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': "Which of the following is not an indication of Amniocentesis for Chromosomal detection : \nSelect and explain. \nA. Diabetes mellitus, B. Previous Down's child, C. Maternal age more than 35, D. Parents with Chromosomal anomaly", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diabetes mellitus', 'role': 'assistant'}]