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': 'Insulin caused lipogenesis by all except? \nSelect and explain. \nA. Increasing acetyl-CoA corboxylase activity., B. Increases the transport of glucose in to the cells, C. Inhibits Pyruvate dehydrogenase, D. Decreases intracellular cAMP level', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]