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': 'Best contraceptive for diabetic female is : \nSelect and explain. \nA. Oral pills, B. IUCD, C. Condom by husband, D. Today sponge', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Condom by husband', 'role': 'assistant'}]