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.
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Question: Question: To diagnose a situation of cardiorespiratory arrest, the correct sequence of assessment according to the recommendations of the Guide 2010 of the Spanish Council of Cardiopulmonary Resuscitation consists of: 
 Options:  <0> Check unconsciousness, check signs of life or presence of pulse, check if you breathe and open the airway. <1> Check unconsciousness, alert, open the airway and check if it breathes. <2> Check pulse, alert, open the airway, check unconsciousness, check if you breathe. <3> Open the airway, check unconsciousness, check for pulse or signs of life (cough, movement) and check if you breathe. <4> Open the airway, alert, check if you breathe, check presence of pulse or signs of life and check unconsciousness.

Answer: nursery


Question: Question: The oxygen of the ethers as that of the alcohols can be protonated to generate: 
 Options:  <0> Iminium ion. <1> Alkaloxonium ions. <2> Peroxides <3> Piranos. <4> Enaminas

Answer: chemistry


Question: Question: A 75-year-old man who reported decreased visual acuity in his right eye of two weeks of evolution. In the fundus examination, soft drusen and serous detachment at the level of the macula are seen. What treatment is currently the most indicated for this disease? 
 Options:  <0> Focal photocoagulation with laser. <1> Photodynamic therapy. <2> Intravitreal injections of anti-angiogenic drugs. <3> Posterior vitrectomy. <4> Observation.

Answer:
medicine