This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!), Subject name: Gynaecology & Obstetrics
[{'content': 'Invasive molar tissue is most commonly found in \nSelect and explain. \nA. Myometrium, B. Vaginal wall, C. Ovary, D. Liver', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Invasive molar tissue (locally invasive) invades the myometrium, while metastatic molar tissue (highly metastatic)is a different type which metastasizes to the lung, liver.', 'role': 'assistant'}]