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: A coulometric evaluation: 
 Options:  <0> You do not need the current performance to be 100%. <1> It does not need an indicator system of the end point. <2> Always use a potentiostatic system. <3> It uses a titrant that is generated electrolytically. <4> You need a burette to add the titrant.
[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: In animals, where is most of the extracellular material components synthesized ?: 
 Options:  <0> In the smooth endoplasmic reticulum. <1> In the rough endoplasmic reticulum. <2> In the extracellular layer itself. <3> In the plasma membrane. <4> In the cytoplasm of the cell.
[EX A]:
chemistry