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': 'Regarding maturation index in pregnancy true is \nSelect and explain. \nA. Increased to 25 %, B. More than 10 %, C. Decreased, D. Attains peak value', 'role': 'user'}, {'content': 'Answer: C \nExplanation: KPI (maturation index) is low in secretory phase and during pregnancy.', 'role': 'assistant'}]