Assume you have a solution containing the pyruvate dehydrogenase complex and all the enzymes of the TCA cycle, but none of the metabolic intermediates. When you supplement this solution with 5μ moles each of pyruvate, oxaloacetate, coenzyme A, NAD+, FAD, GDP, and Pi, you find that 5μ moles of CO2 are evolved and then the reaction stops. When you add alcohol dehydrogenase and its substrate acetaldehyde, additional CO2 is produced. How do you explain this result?How do you explain this result?A. The addition of alcohol dehydrogenase plus its substrate allows regeneration of oxaloacetate. B.The addition of alcohol dehydrogenase plus its substrate allows regeneration of GDP. Now oxidized GDP is available for the additional phosphorylation in which additional CO2 can be produced. C.The addition of alcohol dehydrogenase plus its substrate allows regeneration of NAD+. Now oxidized NAD+ is available for the additional TCA reactions in which additional CO2 can be produced. D.The addition of alcohol dehydrogenase plus its substrate allows regeneration of FAD. Now oxidized FAD is available for the additional TCA reactions in which additional CO2 can be produced. E. Additional amount of the substrate is available for the following TCA reactions in which additional CO2 can be produced. How many μ moles of acetaldehyde are required to allow complete oxidation of the pyruvate to 15μ moles of CO2? (Do not take into account the concentration that is already in the system.)Express your answer as an integer and include the appropriate units.