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'.
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Question: Question: Sodium metal reacts violently with water because Na: 
 Options:  <1> Oxidize the water to oxygen, and the reaction is very exothermic. <2> It reduces the water to hydrogen, and the reaction is very exothermic. <3> Oxidizes the water to oxygen, and when a gas is generated, the entropy increases enormously. <4> It reduces the water to hydrogen, and the reaction is very endothermic. <5> It combines with water giving rise to an explosive hydride.

Answer: 2


Question: Question: For which of the following children's problems has the effectiveness of the symbolic modeling technique been demonstrated? 
 Options:  <1> Childhood depression <2> Behavioral disorders associated with ADHD. <3> The autism <4> The shyness. <5> The selective mutism.

Answer: 4


Question: Question: Corresponds to a gene mutation by transversion: 
 Options:  <1> T → C. <2> A → T. <3> G → A. <4> C → T. <5> A → G.

Answer:
2