Task: Text Categorization
Input (English): Question: In the path that leads in the liver to acetoacetate biosynthesis from acetyl CoA, which of the following substances is the immediate precursor of acetoacetate? 
 Options:  <0> 3-Hydroxybutyrate <1> Acetoacetyl CoA. <2> 3-Hydroxybutyrate CoA. <3> Mevalonic acid. <4> 3-Hydroxy-3-methylglutaryl. CoA.
Output (English): chemistry