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: A 24-year-old boy who, after 3 days of high-risk sexual contact, has numerous pustular, small, very pruritic lesions that progress to minute erosions affecting the entire glans and inner face of the prepuce. Indicate which is, among the following, the most probable diagnostic orientation:
Options: <1> Genital candidiasis <2> Chancroid. <3> Secondary syphilis <4> Balanitis by Trichomonas. <5> Fungal infection by dermatophytes.
[EX A]: 1

[EX Q]: Question: In the oxaciclohexane-type conformer of sugar -D - (+) - glucopyranose:
Options: <1> One of the OH- groups is axial, but the remaining substituents are equatorial. <2> The CH2OH group is axial but the remaining groups are equatorial. <3> All groups are axial. <4> All groups are equatorial. <5> The CH2OH group is equatorial but the remaining groups are axial.
[EX A]: 4

[EX Q]: Question: On the molecular biology of cancer:
Options: <1> Oncogenes are mutated derivatives of normal genes, called protooncogenes, whose function is to promote cell proliferation or survival. <2> Oncogenes are genes that synthesize proteins that inhibit cell proliferation. <3> The tumor suppressor genes synthesize proteins that inhibit cell death. <4> Protooncogenes synthesize proteins that promote cell death. <5> Apoptosis is a form of activation of proto-oncogenes.
[EX A]:
1