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': 'Substrate-level phosphorylation seen in reaction catalysed in: \nSelect and explain. \nA. Succinate dehydrogenase, B. Alfa-ketoglutarate dehydrogenase, C. Succinyl CoA thiokinase, D. Malate dehydrogenase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Succinyl CoA thiokinase', 'role': 'assistant'}]