In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

[EX Q]: Question: A 37-year-old woman with an extensive ulcerative colitis has a severe outbreak where treatment with prednisone is started at a dose of 1 mg / kg. After a week of treatment, the patient does not show improvement. What is the next therapeutic measure to perform? 
 Options:  <0> Subtotal colectomy of urgency and in a second time proctectomy and ileoanal reservoir. <1> Associate an immunosuppressant such as azathioprine. <2> Associate mesalazine in doses of 4 grams per day oral and rectal triamcinolone 1 application every 12 hours <3> Endovenous cyclosporine 2 mg / Kg. <4> Treatment with etanercept (an anti-TNFa antibody) should be assessed.
[EX A]: medicine

[EX Q]: Question: The antibiotic tetracycline: 
 Options:  <0> It binds to the 30S subunit and inhibits the binding of aminoacyl-tRNA. <1> Inhibits the peptidyltransferase activity of the 50S ribosomal subunit. <2> It binds to the 50S ribosomal subunit and inhibits translocation. <3> It inhibits the initiation and originates an erroneous reading of the mRNA. <4> It causes premature termination by acting as an analog of the aminoacyl-tRNA.
[EX A]: pharmacology

[EX Q]: Question: The enzymes present inside the virion of the poxviruses are necessary for the replication of their genetic material because: 
 Options:  <0> Its genome is single-stranded DNA (-). <1> Its genome is single-stranded RNA (-). <2> They replicate in the cell cytoplasm. <3> It contains a very high percentage of unusual nitrogenous bases such as inosine. <4> At the beginning of the infection, a blockage of the transcriptional system of the host cell occurs.
[EX A]:
biology