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: Dental
[{'content': 'True statement about Green stick impression compound is \nSelect and explain. \nA. Its melting point is 50 degree Celsius to 51.1 degree Celsius., B. It’s a type 1 impression compound, C. It is a higher fusing material also called as tray compound, D. Both 1st and 2nd statements are true.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]