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': 'True about mitochondrial chain elongation of fatty acid is/are \nSelect and explain. \nA. Operates under anaerobic conditions, B. Not a common pathway, C. Pyridoxal-phosphate & NADPH is required, D. All of these', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Operates under anaerobic conditions\nFatty Acid Chain Elongation', 'role': 'assistant'}]