This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Diagnostic procedure for postmenopausal bleeding \nSelect and explain. \nA. Endometrial aspiration, B. Hysteroscopic guided biopsy, C. Dilatation and curettage, D. Ultrasound', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gold standard is hysteroscopic directed endometrial sampling. Next, best is endometrial aspiration as it gives a global endometrial sample by viue of suction. D and C and EB should never be done to diagnose the cause of postmenopausal bleeding. The most common cause overall is senile endometritis and the most common malignant cause is endometrial cancer', 'role': 'assistant'}]