This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
[{'content': 'false regarding neoplasms of the ovary are: \nSelect and explain. \nA. Stromal invasion is commonly present in ovarian tumours of borderline malignancy, B. Lymphocytic infiltration is characteristic to dysgerminoma, C. Presence of ascites and pleural effusion in Brenner tumour indicates poor prognosis, D. Endometrioid carcinoma of the ovary may coexist with endometrial adenocarcinoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Borderline ovarian tumours grade 0 tumors may demonstrate papillary tufting,stratification,epithelial atypia,exfoliation of cellular clusters,minimal mitotic activity No stromal invasion Patients have a high survival rate. runs a typical indolent course spontaneous regression of peritonial implants multiple sections examined to exclude invasion SHAW&;S TEXTBOOK OF GYNECOLOGY,Pg no:373,374,15th edition', 'role': 'assistant'}]