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: The polymerase chain reaction (PCR) encompasses three processes. Select sequence order: 
 Options:  <1> Extension → Fusion → Denaturation. <2> Fusion → Denaturing → Extension. <3> Denaturing → Fusion → Extension. <4> Denaturing → Extension → Fusion. <5> Extension → Denaturation → Fusion.
answer:
3


question:
Question: The innate immune response to viruses is mainly mediated by lymphocytes: 
 Options:  <1> B1 <2> Th1. <3> Cytolytic T <4> NK <5> Tγδ.
answer:
4


question:
Question: A 68-year-old woman diagnosed with pulmonary tuberculosis. Treatment with Isoniacid, Rifampicin and Ethambutol was started. At 12 days after the start of treatment, he consulted for fever of 38ºC, skin rash, lymphadenopathy, arthralgia, lumbar pain, oliguria and eosinophilia with acute deterioration of renal function. The urine test revealed hematuria, leukocyturia with eosinophiluria in Wright's stain and non-nephrotic proteinuria (1.2 grams daily). With these clinical data the most likely diagnosis is: 
 Options:  <1> Acute tubular necrosis due to drug nephrotoxicity. <2> Acute tubular necrosis of ischemic etiology. <3> Ateroembolic disease. <4> Thrombotic occlusion of the main renal artery. <5> Acute tubulointerstitial nephritis.
answer:

5