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: Indicate in what clinical situation would NOT indicate beginning interferon beta in a patient diagnosed with multiple sclerosis:
Options: <1> Multiple recurring outbreaks. <2> Bad response to corticosteroids in outbreaks. <3> Having suffered a single outbreak of the disease with sequelae. <4> Be over 50 years old <5> A progressive primary clinical form.
[A]: 5

[Q]: Question: Which of the following molecules has the highest number of antibonding electrons?
Options: <1> B2. <2> N 2 <3> Li2. <4> F 2 <5> O 2
[A]:
4