instruction:
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.
question:
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.
answer:
chemistry


question:
Question: Mitochondrial oxidative phosphorylation is regulated by: 
 Options:  <0> Mitochondrial steroid hormones. <1> Apoptosis <2> Thermogenin <3> The cytochrome c. <4> The cellular energy charge.
answer:
chemistry


question:
Question: The evaluation of the emotion expressed is useful in the context of the psychological treatment of schizophrenia. But from what sphere is the evaluation of the expressed emotion usually part ?: 
 Options:  <0> Of the evaluation of symptoms. <1> From the evaluation of the insight. <2> Of the cognitive evaluation. <3> Of the family evaluation. <4> Of the rational-emotive evaluation.
answer:

psychology