This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vomiting in pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'All are risk factors for hyperemesis gravidarum, EXCEPT? \nSelect and explain. \nA. Hypehyroidism, B. Twin pregnancy, C. Molar pregnancy, D. Gestational diabetes', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Following are risk factors for Hyperemesis Gravidarum LEARNING TIP: ALL CASES WITH INCREASED HCG WILL LEAD TO INCREASED RISK OF HYPEREMESIS multiple pregnancy molar gestation family history of HG past history of HG female gestation hypehyroidism nulliparity young age hyperparathyroidism', 'role': 'assistant'}]