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 one of the following is the most suitable situation for prescribing the progestin ony pill : \nSelect and explain. \nA. Perimenopusal patients, B. Emergency contraception, C. Lactational mother, D. Diabetic mother', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lactational mother', 'role': 'assistant'}]