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
The ketone bodies produced by the liver are all except: 
Select and explain. 
A. β-hydroxybutyrate, B. Acetoacetate, C. Acetone, D. Glycerol 3-phosphate
D: Glycerol 3-phosphate
Answer: D: Glycerol 3-phosphate 
Explanation: Under metabolic conditions associated with a high rate of fatty acid oxidation, the liver produces considerable quantities of acetoacetate and  d(-)-3-hydroxybutyrate (β-hydroxybutyrate). Acetoacetate continually undergoes spontaneous decarboxylation to yield acetone. These three  substances are collectively known as the ketone bodies (also called acetone bodies or    “ketones”).
HARPERS ILLUSTRATED BIOCHEMISTRY30th ed Page no 226