This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Which of the following is the products formed from alcohol but not the intermediates of TCA cycle/glycolysis? 
Select and explain. 
A. Acetaldehyde, B. Pyruvate, C. Lactate, D. Oxalate
A: Acetaldehyde
Answer: A: Acetaldehyde 
Explanation: Oxidation of ethanol by alcohol dehydrogenase leads to excess production of NADH in the Liver