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': 'Major contribution towards gluconeogenesis is by? \nSelect and explain. \nA. Lactate, B. Glyerol, C. Ketones, D. Alanine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Alanine', 'role': 'assistant'}]