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
Gluconeogenesis can occur from all except : 
Select and explain. 
A. Lactic acid, B. Aceto acetate, C. Glycerol, D. Alanine
B: Aceto acetate
Answer: B: Aceto acetate 
Explanation: B i.e. Acetoacetate