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': 'Oral hypoglycemic safely given in pregnancy is \nSelect and explain. \nA. Metformin, B. Sitagliptin, C. Glimepride, D. Pioglitazone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Oral hypoglycemic drugs have found to be effective and safe. Commonly used drugs are Glibenclamide and metformin. Both the drugs cross the placenta However, No teratogenic effect has been observed yet. Glibenclamide appears to be superior when compared to metformine. Reference: DC.Duttas textbook of OBG,9th edition,page 267', 'role': 'assistant'}]