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 methods of modifying stainless steel crowns for primary teeth were given by: \nSelect and explain. \nA. Garcia-Godoy, B. Humphrey, C. Mink and Hill, D. Michelle and Johnson', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In 1971, Mink and Hill reported several ways of modifying the stainless steel crown when the crowns are either too large or too short.', 'role': 'assistant'}]