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': 'During first trimester of pregnancy risk of fetal malformation in a pregnant woman with insulin dependent diabetes is best predicted by : \nSelect and explain. \nA. Blood sugar values, B. Glycosylated haemoglobin levels, C. Serum alpha fetoprotein levels, D. Serum unconjugated estriol levels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glycosylated haemoglobin levels', 'role': 'assistant'}]