This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Emergency Contraception - Ulipristal acetate (UPA), Subject name: Gynaecology & Obstetrics
[{'content': 'First dose OCP in emergency contraception is to be taken within - \nSelect and explain. \nA. 24hrs, B. 48hrs, C. 72hrs, D. 96hrs', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., 72 hrs "Morning after pill : ethinyl-estrediol 2.5 mg, premarin 15 mg, the drug is taken orally twice daily for 5 days. Beginning soon after exposure but not later than 72 hrs ",', 'role': 'assistant'}]