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': 'Hypeension, proteinuria, and pitting edema are noted in the second month of the first pregnancy in a 25-year-old woman. Pathogenesis of her presenting complaints is most closely associated with:- \nSelect and explain. \nA. A benign tumor of the chorionic villi, B. Gestational diabetes mellitus, C. Primary endometrial cancer, D. Primary endometrial cancer', 'role': 'user'}, {'content': "Answer: A \nExplanation: Preeclampsia (hypeension, proteinuria, pitting edemA. in the first trimeater is most often secondary to a hydatidiform mole, which is a benign neoplasmof the chorionic villi. The uterus is frequently too large for gestational age, and fetal hea sounds are absent. It is too early in this patient's pregnancy for gestational cancer. Choricarcinomas are malignant trophoblastic tumors that most commonly develop from a preexisting complete mole. A tumor arising from the myomerium (leiomyomA. is not associated with preeclampsiA.", 'role': 'assistant'}]