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'.

[Q]: Question: In the preoperative period (2-6 years) the child usually thinks that the things of nature (rivers, mountains, etc.) have been built by the human being. This feature is called: 
 Options:  <1> Animism. <2> Realism. <3> Artificialism <4> Utilitarianism. <5> Pre-operative error
[A]: 3


[Q]: Question: Which of the following is a characteristic of the psychopharmacological treatment of ADHD? 
 Options:  <1> To reduce motor distress, anxiolytic drugs are usually used. <2> Among its possible side effects are the worsening of behavior at the end of the day (rebound effect) and the intensification of existing tics. <3> The effect of methylphenidate is maintained in the medium term once the treatment has been interrupted. <4> It can improve attention and decrease hyperactivity but is not effective in managing impulsive behaviors. <5> When it is effective in improving attention and controlling hyperactivity, psychological intervention is unnecessary.
[A]: 2


[Q]: Question: In ion exchange chromatography, the carboxylic acid functional group is used as: 
 Options:  <1> As a strong anion exchanger in ion exchange resins. <2> As a strong cation exchanger in ion exchange resins. <3> As a weak anion exchanger in ion exchange resins. <4> As a weak cation exchanger in ion exchange resins. <5> It is never used in ion exchange.
[A]:
4