This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'Which of the following enzyme uses citrate in fatty acid synthesis? \nSelect and explain. \nA. Aconitase, B. Citrate synthase, C. Malic enzyme, D. ATP citrate lyase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Reference: Harpers illustrated biochemistry 30th edition', 'role': 'assistant'}]