In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

[EX Q]: Question: What type of amino acid side chains will compete with saline ions for solvation water ?: 
 Options:  <0> Apolares. <1> Aliphatic <2> Aromatic <3> Polar <4> Without charge.
[EX A]: chemistry

[EX Q]: Question: Indicate which of the following is a mitochondrial disease: 
 Options:  <0> α-thalassemia <1> Essential fructosuria. <2> Leigh syndrome. <3> Cushing's syndrome. <4> Sickle cell anemia
[EX A]: pharmacology

[EX Q]: 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.
[EX A]:
chemistry