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': 'Corrosion of stainless steel is due to formulation of: \nSelect and explain. \nA. Chromium carbide, B. Carbon carbide, C. Iron carbide, D. Nickel carbide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]