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': 'Nabothian follicles occur in: \nSelect and explain. \nA. Erosion of cervix, B. Ca endometrium, C. Ca cervix, D. Ca vagina', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cervical erosion: Condition where squamous epithelium of ectocervix is replaced by columnar epithelium which is continuous with endocervix. \n\nIt occurs when estrogen levels are high as in pregnancy and use of oral contraceptives (OCP’s). \nAs a result of healing of an erosion, the mouth of the cervical gland is blocked. \nThe blocked gland becomes distended with secretion and forms small cysts which can be seen with naked eye and so-called Nabothian cyst.', 'role': 'assistant'}]