This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Reproductive physiology and hormones in females, Subject name: Gynaecology & Obstetrics
[{'content': 'Cornification index or Eosinophilic index indicates : \nSelect and explain. \nA. Progesterone effect, B. Estrogenic effect, C. Effect of LH, D. Effect of FSH', 'role': 'user'}, {'content': "Answer: B \nExplanation: Cornification index (% of cornified cells) Cornification of vagina is due to high estrogen levels In the first half of pregnancy, cornification index is low and does not exceed 10% Progesterone deficiency is shown by rise in cornification index and if >25% liable to abo At term it is <10% Reference: Shaw's Textbook of Gynecology, 16th edition; Page no: 381", 'role': 'assistant'}]