instruction:
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'.
question:
Question: A 20-year-old boy goes to the emergency room for fever of 39ºC, chills, papules and hemorrhagic pustules on the distal extensor surfaces of the extremities and arthritis of the knee. What is your diagnosis of initial suspicion? 
 Options:  <1> Rheumatoid arthritis. <2> Reiter syndrome. <3> Urica Drop <4> Gonococcal arthritis. <5> Vasculitis of Cogan.
answer:
4


question:
Question: The most appropriate microscopy to identify Treponema pallidum in exudates from syphilitic lesions is: 
 Options:  <1> Clear field without staining. <2> Clear field with simple staining. <3> Dark field <4> Phase contrast. <5> Polarized light
answer:
3


question:
Question: Oxidative phosphorylation involves: 
 Options:  <1> The oxidation of H2O to form O2. <2> Oxidation of O2 to form H2O. <3> The reduction of H2O to give O2. <4> The reduction of O2 to give H2O. <5> None of the above.
answer:

4