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': 'Which of the following is associated with pregnancy? \nSelect and explain. \nA. Type I diabetes, B. Type II diabetes, C. Gestational diabetes, D. Juvenile diabetes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Reproductive capacity in either men or women with DM appears to be normal. Menstrual cycles may be associated with alterations in glycemic control in women with DM. Pregnancy is associated with marked insulin resistance; the increased insulin requirements often precipitate DM and lead to the diagnosis of gestational diabetes mellitus (GDM).', 'role': 'assistant'}]