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': '26 year old female on progestin only pill contraceptive attends gynaecology OPD about not taking pill at same time everyday. She had been taken pill everyday at 10 a.m except for a day before, at 5p.m what is your advise? \nSelect and explain. \nA. No need to worry, continue same contraceptive, B. Use additional form of contraceptive for next 48 hours, C. Change over to combined oral contraceptive pills, D. Take double dose of pill next morning', 'role': 'user'}, {'content': 'Answer: B \nExplanation: If POP is taken even 4 hours late, an additional form of contraception must be used for next 48 hours.', 'role': 'assistant'}]