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: Unknown
[{'content': 'Specific test for ketohexoses: \nSelect and explain. \nA. Selivanoff’s test, B. Osazone test, C. Molisch test, D. None of these', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Selivanoff’s test: this is a specific test for ketohexoses. Concentrated hydrochloric acid dehydrates ketohexoses to form furfural derivatives which condense with resorcinol to give a cherry red complex.', 'role': 'assistant'}]