Task: Text Categorization
Input (English): Question: During a prolonged fast: 
 Options:  <0> The low level of blood sugar decreases the secretion of glucagon and increase the insulin. <1> Decreases the concentration of acetyl-CoA. <2> The main fuel of the organism happens to be the fatty acids and the ketone bodies. <3> The proteins are degraded and replenished immediately. <4> The brain and the heart use fatty acids as fuels.
Output (English): chemistry