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: Pharmacology
[{'content': 'Which of the following Dopamine agonist can be used to treat Diabetes mellitus? \nSelect and explain. \nA. Bromocriptine, B. Ropinirole, C. Cabergoline, D. Selegiline', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bromocriptine is a D2\xa0receptor agonist approved for Type 2 DM as dopamine alters Insulin resistance.', 'role': 'assistant'}]