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 secretion of GH or growth hormone: 
 Options:  <0> It stops at 20 years old. <1> It last for ever. <2> During the day it is greater than at night. <3> It is stimulated by somatostatin. <4> It is stimulated by the substances.
[A]: biology


[Q]: Question: Among the partial reactions that lead to sodium carbonate by the Solvay Process, are: 
 Options:  <0> The reaction between calcium carbonate and sodium chloride. <1> The precipitation of sodium hydrogen carbonate. <2> The thermal decomposition of ammonium chloride. <3> The formation of CaCO3 from CaO and CO2. <4> The reaction of ammonia with calcium oxide.
[A]: chemistry


[Q]: Question: A 32-year-old man with no history of interest or cardiovascular risk factors. Clinic of dyspnea when climbing a floor of stairs of 1 month of evolution. Consultation due to sudden syncope preceded by exertion. Family history of death not explained abruptly in his brother. On physical examination, a more audible rumen systolic murmur with aortic focus is highlighted. The electrocardiogram performed in the consultation shows a sinus rhythm with a compatible pattern of left ventricular hypertrophy. An echocardiogram was performed to document an important asymmetric hypertrophy of the interventricular septum with a subvalvular dynamic gradient of 70 mmHg with moderate secondary mitral regurgitation and preserved left ventricular ejection fraction. Which therapeutic option is the LESS indicated? 
 Options:  <0> Beta-blockers. <1> Digoxin <2> Calcium-non-dihydropyridine antagonists. <3> Implantable automatic defibrillator. <4> Surgical septal myomectomy of Morrow.
[A]:
medicine