This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Natural Methods, Barrier Methods, IUDs, OCPs, Subject name: Social & Preventive Medicine
[{'content': 'Contraceptive pill of choice in lactating female is: \nSelect and explain. \nA. Quinesterol, B. Saheli, C. Progesterone only pill, D. Combined OCP', 'role': 'user'}, {'content': 'Answer: C \nExplanation: OCP are contraindicated in first six months of breastfeeding. Of the remaining methods, POP has the highest effectiveness. Progesterone only pills can be initiated after six weeks of delivery. POP with LAM has a failure rate with typical usage of only 1/HWY. - LAM (Lactational Amenorrhea) is a method, which will be functional in all women by default as exclusive breastfeeding is recommended for six months.', 'role': 'assistant'}]