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': 'The castability of chromium-cobalt base metal alloys when compared to gold based noble metal alloys is \nSelect and explain. \nA. More, B. Less, C. Equal, D. Depends on the alloy type', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]