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: Question linked to the image nº4 34-year-old man, athlete, who presents a picture of oppressive, continuous chest pain radiating to the back that is accentuated with deep inspiration, of 4 days of evolution, without fever. It refers to a picture of tonsillitis 2 months ago. Rhythmic cardiac auscultation without murmurs. It does not present data of hemodynamic alteration or heart failure. Normal analytical, except for discrete leukocytosis. When you arrive at the emergency room, an ECG is performed, shown in the figure. While waiting for the result of markers of myocardial injury, the most likely diagnosis in this patient is: 
 Options:  <0> Subacute myocardial infarction anteroseptal. <1> Tietze syndrome. <2> Osteomuscular thoracic pain with athlete's ECG. <3> Acute pericarditis <4> Unstable angina.
[A]: medicine


[Q]: Question: About free radicals: 
 Options:  <0> They are compounds that contain two or three unpaired electrons in an outer orbital. <1> Reactive oxygen species (ROS) in the cell are only generated enzymatically. <2> Hydrogen peroxide is the most damaging radical in the cell. <3> The hydroxyl radical originates non-enzymatically (Heber-Weiss reaction) and damages proteins and DNA. <4> Oxygen is a triradical.
[A]: chemistry


[Q]: Question: What are the components of the habit inversion procedure for the treatment of tics? 
 Options:  <0> The self-registration of tics and relaxation. <1> Self-control and contingency management by parents. <2> Exposure with response prevention and cognitive restructuring. <3> The training in increasing awareness of the occurrence of tics and the practice of a competitive response. <4> Relaxation and the practice of a competitive response.
[A]:
psychology