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': 'The substance essential for transfer of fatty acids across mitochondrial membrane: \nSelect and explain. \nA. Cera tine, B. Ceratinine, C. Carnitine, D. Coenyzme A', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Carnitine', 'role': 'assistant'}]