This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'Which female genital malignancy is most common in pregnancy ? \nSelect and explain. \nA. Ovarina cancer, B. Vaginal vulvar cancer, C. Endometrial cancer, D. Cervical cancer', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cervical cancer accounts 13.5% Ovarian cancer 10.5% Others 12.6% Ref. Williams Obs 24/e p1221', 'role': 'assistant'}]