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': 'Most common tumor of ovary found in pregnancy is? \nSelect and explain. \nA. Sex cord tumour, B. Epithelial tumor, C. Dysgerminoma, D. Dermoid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dermoid REF: Dutta 6th ed p. 310 The most common tumour of ovary in pregnancy is dermoid', 'role': 'assistant'}]