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': 'All are associated with hydramnios except: \nSelect and explain. \nA. Premature labour, B. Gestational diabetes, C. Renal agenesis, D. Increased amniotic fluid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]