This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'All are seen in gestational diabetes except \nSelect and explain. \nA. Previous macrosomic baby, B. Obesity, C. Malformations, D. Polyhydramnios', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Potential candidates for GDM Positive family history of diabetes Previous bih of an overweight baby >4 kg, Stillbih, Unexplained perinatal loss Polyhydramnios Recurrent vaginal candidiasis Persistant glycosuria Age>30 years Obesity Ethnic group Reference: D.C.Dutta&;s Textbook of Obstetrics; 7th edition; Page no: 281', 'role': 'assistant'}]