Why does skeletal muscle and cardiac muscle produce different amounts of ATP through the same amount of glucose?

Why does Skeletal muscle and cardiac muscle produce different amounts of ATP through the same amount of glucose? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a They have different pyruvate mitochondrial shuttles b They have different NADH mitochondrial shuttles c They have different lactate mitochondrial shuttles