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': 'Amount of estrogen in Mala D is: \nSelect and explain. \nA. 30 μg, B. 50 μg, C. 10 μg, D. 80µg', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]