This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'What is the content of ethinyl estradiol in very low dose oral contraceptives? \nSelect and explain. \nA. 30 Yg, B. 25 Yg, C. 20 Yg, D. 15 Yg', 'role': 'user'}, {'content': 'Answer: A \nExplanation: <p> Governments of India has made available 2 types of low-dose oral pills under the brand names of MALA-N and MALA-D. It contains ethinyl estradiol 30 micrograms and levonorgestrel 0.15 milligrams. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:500. <\\p>', 'role': 'assistant'}]