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.

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.
medicine

Question: The order of the stages of the cell cycle is: 
 Options:  <0> S, G1, Mitosis, G2. <1> G2, G1, S, Mitosis. <2> G1, Mitosis, G2, S. <3> S, G0, Mitosis, G1. <4> G1, S, G2, Mitosis.
biology

Question: The classical pathway of complement is activated in response to: 
 Options:  <0> Antigen-antibody complexes. <1> Direct binding of C3b to bacterial walls. <2> Microbial glycolipids. <3> Properdin <4> The C-reactive protein.

biology