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': 'Best investigation for carcinoma endometrium with endocervical involvement is : \nSelect and explain. \nA. Transvaginal USG, B. Endocervical curettage, C. Punch Biopsy, D. Papsmear', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Endocervical curettage', 'role': 'assistant'}]