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: Regarding the exploration of psychomotor development, the area of ​​language and sociability in a four-year-old child, which of the following findings can be considered a sign of alarm in the maturation process ?: 
 Options:  <1> Abrupt stop of the acquisition of skills or loss of some already acquired. <2> Hyperactivity He does not know how to entertain himself, he needs constant vigilance. <3> Excessive sociability; he goes with anyone indiscriminately. <4> Repeat questions instead of answering them. <5> All these situations are warning signs.

A: 5
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Q: Question: Which of the nucleophiles listed below has a greater reactivity to the bimolecular nucleophilic substitution reaction? 
 Options:  <1> Hydroxide. <2> I last. <3> Ammonia. <4> Water. <5> Acetic acid.

A: 2
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Q: Question: The tungsten is a very important element from the technological point of view, which is used, among other things, in the steel industry. But his interest extends to other scientific fields, due to: 
 Options:  <1> Which is one of the essential elements for life are human beings and animals. <2> Which is liquid in the range 27ºC-2500ºC, which explains its use in high temperature thermometers. <3> Its inability to react with oxygen even at such high temperatures as heating to red. <4> Its total resistance to fluoride even at temperatures as high as heating to red. <5> Its great mechanical resistance.

A:
5
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