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'.

[EX Q]: Question: Which of the following is considered a normal response of the cardiovascular system originated in the baroreceptors as a consequence of hypotension ?:
Options: <1> Increase in systemic vascular resistance. <2> Increase in parasympathetic stimulation. <3> Decrease in heart rate <4> Decreased stroke volume. <5> Decrease in cardiac output
[EX A]: 1

[EX Q]: Question: Naloxone is used in the treatment of poisoning with:
Options: <1> Opiates <2> Benzodiazepines. <3> Barbiturates <4> Tricyclic antidepressants. <5> Digitalicos.
[EX A]: 1

[EX Q]: Question: By heating in electric furnaces of silica, calcium carbide and coal, calcium silicides are obtained. One of them:
Options: <1> It has the composition CaSi2. <2> It does not react with water. <3> Does not react with sulfuric acid. <4> It is a powerful oxidizing agent. <5> Its reaction with liquid water generates calcium silicate.
[EX A]:
1