instruction:
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.
question:
Question: Which of the following correlates with retinopathy of the premature newborn? 
 Options:  <0> The bilirubin. <1> Gentamicin <2> The corticoids <3> The Oxigen. <4> Fentanyl
answer:
medicine


question:
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.
answer:
chemistry


question:
Question: In disorders related to substance use, what is physical dependence? 
 Options:  <0> In a physical process of short duration. <1> In an intense sense of dissatisfaction for not being able to consume the substances. <2> In the action of consuming drugs producing a state of intoxication with psychoactive effect. <3> In a series of physical and psychic changes that take place after the administration of a substance. <4> In a state of physical adaptation manifested by intense physical disturbances when the administration of the drug is interrupted.
answer:

nursery