This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aboions, Spontaneous & Induced Emergency Contraception (Hey,whats the hurry !), Subject name: Gynaecology & Obstetrics
[{'content': 'Progesterone of choice in emergency contraception: \nSelect and explain. \nA. Micronized progesterone, B. Norgesterone, C. Levonorgestrel, D. DMPA', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Levonorgestrel is the best progesterone of choice for emergency contraception with least side effects.', 'role': 'assistant'}]