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.

[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.
[A]: chemistry


[Q]: Question: In relation to classical congenital adrenal hyperplasia indicate the correct answer: 
 Options:  <0> The lack of treatment causes a progressive postnatal virilization. <1> For the diagnosis, a stimulation test with ACTH is necessary. <2> In the male sex, the external genitalia are ambiguous at birth. <3> In the female sex, the external genitalia are normal at birth. <4> Prenatal treatment with glucocorticoids prevents the disease.
[A]: medicine


[Q]: Question: Contains abundant glycogen: 
 Options:  <0> Hepatocytes <1> Plasma cells. <2> Lymphocytes <3> Baited cells. <4> Fibroblasts.
[A]:
biology