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: Biochemistry
[{'content': 'Glucose may be synthesised from : \nSelect and explain. \nA. Glycerol, B. Adenine, C. Guanine, D. Palmitic acid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Glycerol', 'role': 'assistant'}]