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: Ferrous oxide, known as wustite (FeO) is non-stoichiometric because it contains: 
 Options:  <1> Excess iron <2> Oxygen excess <3> Iron defect. <4> Oxygen defect. <5> Defect of iron and oxygen.

Answer: 3


Question: Question: In relation to the consumption of dietary fiber, it is true that: 
 Options:  <1> It must be balanced (25% soluble and 75% insoluble, approximately). <2> The higher the consumption of fiber, the lower the water intake. <3> The products made with refined seeds have a high fiber content. <4> Legumes are a poor source of fiber. <5> In the adult, 10-15 g of fiber are recommended daily.

Answer: 1


Question: Question: What is onychomycosis ?: 
 Options:  <1> An infection of the oral mucosa and gums of infants produced by Candida albicans. <2> A brain abscess in immunosuppressed caused by Aspergillus spp. <3> An infection of the nails by fungi dermatophytes. <4> A serious variety of acne in which fungal species also participate. <5> A lung infection caused by Pneumocystis jirovecii.

Answer:
3