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: If the normal reduction potential of the pair Zn2 + / Zn is -0.76 V: 
 Options:  <1> Aqueous solutions of Zn2 + at pH = 0 release oxygen. <2> Putting metallic Zn in aqueous solution at pH = 0 releases oxygen. <3> Aqueous solutions of Zn2 + at pH = 0 give off hydrogen. <4> By putting metallic Zn in aqueous solution at pH = 0, hydrogen is evolved. <5> Zn2 + dismutates in aqueous solution at pH = 0.
[A]: 4


[Q]: Question: The negative symptomatology of schizophrenia seems to be caused by: 
 Options:  <1> The excessive activity of some dopaminergic neural circuits. <2> The excessive activity of the GABAergic neurons. <3> The existence of brain damage. <4> Have a gene for schizophrenia that causes negative symptoms. <5> Insufficient activity of the serotonergic neurons of the frontal lobe.
[A]: 3


[Q]: Question: The patient's desire not to be informed: 
 Options:  <1> It is regulated by law only for exceptional cases. <2> It is not regulated in any way by law. <3> The professional obligation is to always inform you, even if you do not want to. <4> It is a right that the law grants to all people. <5> They must be reported to the judicial authority.
[A]:
4