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: Inhibin: 
 Options:  <0> Inhibits the secretion of FSH. <1> Blocks the secretion of estrogen. <2> Stimulates the secretion of GnRH. <3> The adenohypophysis produces it. <4> Stimulates the secretion of LH.
[EX A]: biology

[EX Q]: Question: The main method for the preparation of βceto esters is the reaction known as: 
 Options:  <0> Malonic synthesis <1> Acetoacetic synthesis. <2> Condensing of Claisen. <3> Perkin reaction. <4> Hofmann reaction.
[EX A]: pharmacology

[EX Q]: Question: Which of the following is a characteristic of the psychopharmacological treatment of ADHD? 
 Options:  <0> To reduce motor distress, anxiolytic drugs are usually used. <1> Among its possible side effects are the worsening of behavior at the end of the day (rebound effect) and the intensification of existing tics. <2> The effect of methylphenidate is maintained in the medium term once the treatment has been interrupted. <3> It can improve attention and decrease hyperactivity but is not effective in managing impulsive behaviors. <4> When it is effective in improving attention and controlling hyperactivity, psychological intervention is unnecessary.
[EX A]:
psychology