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: The valvulopathy that triggers an overload of volume in both the left atrium and ventricle is: 
 Options:  <0> Mitral stenosis. <1> Mitral insufficiency <2> Aortic stenosis. <3> Aortic insufficiency <4> Tricuspid insufficiency.
[A]: pharmacology


[Q]: Question: What type of mechanism does Gestalt propose as an explanatory mechanism for solving a problem ?: 
 Options:  <0> The trial and error. <1> The search for operations in the problem space. <2> The algorithmic methods. <3> The huerísticos methods. <4> The insight.
[A]: psychology


[Q]: Question: Which of the following enzymes acts in the pentose phosphate route ?: 
 Options:  <0> Aldolase <1> Glucose 6-phosphate dehydrogenase. <2> Glycogen phosphorylase. <3> Fosfofructoquinasa-1. <4> Pyruvate kinase.
[A]:
chemistry