This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Obs), Subject name: Gynaecology & Obstetrics
[{'content': 'A 55-year-old lady presenting to OPD with postmenopausal bleeding for 3 months has a 1x1 mm nodule on the anterior lip of cervix, the most appropriate investigation to be done subsequently is \nSelect and explain. \nA. Pap smear, B. Punch biopsy, C. Endocervical curettage., D. Colposcopy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Punch biopsyPunch biopsy is required in all cases in which there is visible area of redness, an iodine negative area or an area of colposcopic abnormality.A cone biopsy and curettage should be done when cytologic examination reveals moderate or severe dysplasia, carcinoma in situ, or perhaps invasive carcinoma.', 'role': 'assistant'}]