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: Medicine
[{'content': 'GTT post 1 hour sugar for gestational diabetes is >mg % \nSelect and explain. \nA. 140, B. 150, C. 180, D. 200', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 180mg%", 'role': 'assistant'}]