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': 'Which of the following is true regarding gestational diabetes \nSelect and explain. \nA. Gestational diabetes confers an increased risk of congenital malformation., B. If Hb A1c < 6, there is no risk of congenital malformations., C. As pre-conceptional glucose control worsens incidence of congenital malformations increase., D. Highest risk for congenital malformation is seen with Hb A1c level between 7 and 8.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Risk of congenital malformations is more in overt diabetic woman (pre-conceptional Diabetics).', 'role': 'assistant'}]