This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
All are substrates for gluconeogenesis except 
Select and explain. 
A. Lactate, B. Propionate, C. Alanine, D. Acetyl-CoA
D: Acetyl-CoA
Answer: D: Acetyl-CoA 
Explanation: Substrates for gluconeogenesis- lactate,glucogenic amino acids such as alanine,glycerol,propionyl CoA.Ref: DM Vasudevan, 7th edition, page no: 119