In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

[EX Q]: Question: An isolated carbon atom is: 
 Options:  <1> Diamagnetic <2> Ferromagnetic. <3> Paramagnetic, with an unpaired electron. <4> Paramagnetic, with two unpaired electrons. <5> Paramagnetic, with three unpaired electrons.
[EX A]: 4

[EX 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:  <1> Subacute myocardial infarction anteroseptal. <2> Tietze syndrome. <3> Osteomuscular thoracic pain with athlete's ECG. <4> Acute pericarditis <5> Unstable angina.
[EX A]: 4

[EX Q]: Question: In strict vegetarians, a lack of one of the following vitamins may appear: 
 Options:  <1> B12 vitamin. <2> Vitamin C. <3> Retinol <4> Folate <5> Niacin
[EX A]:
1