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': 'A 45 year old post menopausal woman presents with vaginal bleeding. Transvaginal ultrasound reveals an endometrial thickness of 8.0 mm. The next step in the management should be: \nSelect and explain. \nA. Hysterectomy, B. Sta progesterone therapy, C. Histopathological examination of curettage, D. Follow up sonogaphy', 'role': 'user'}, {'content': "Answer: C \nExplanation: Postmenopausal women with endometrial thickness > 5mm require histopathological examination of the endometrium which can he performed by 'Hysteroscopy and Endometrial biopsy' or after Dilatation and Curettage. Ref: Danfoh's Obstetrics and Gynaecology, 10th Edition, Pages 542-43; Ultrasound: A Practical Approach to Clinical Problems By Bluth, 2000, Pages 238-39; Gynaecological Ultrasound in Clinical Practice: Ultrasound Imaging By D. Jurkovic, Lil Valentin, Sanjay Vyas, Page 14", 'role': 'assistant'}]