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.

Example Input: Question: Immunoglobulin isotype change affects: 
 Options:  <0> The constant regions of the heavy chains. <1> The constant regions of the light chains. <2> The totality of heavy chains. <3> The entire immunoglobulin molecule. <4> The hypervariable regions of the heavy chains.
Example Output: biology

Example Input: Question: A 16-year-old boy who consulted due to pultulose tonsillitis, fever up to 38.5ºC, painful cervical adenopathies, non-pruritic macular exanthema in the thorax and mild hepatosplenomegaly, 4-5 days old. The Paul-Bunnell test and the IgM for the Epstein-Barr virus are positive. During his admission he develops a continuous fever of up to 40ºC, pancytopenia, icteric hepatitis and coagulopathy of progressive intensity. One week after admission, he was transferred to the ICU due to confusion and respiratory failure. The blood cultures and a urine culture are negative, the CSF is normal and the chest plate does not show infiltrates. Procalcitonin is normal, but PCR and ferritin are very high. From the statements below, what would be the most correct diagnostic and therapeutic approach? 
 Options:  <0> It has a bacterial sepsis of undetermined origin and should be administered ceftriaxone and supportive treatment. <1> It has a bacterial sepsis of undetermined origin and should be administered vancomycin, ceftacidime and supportive treatment. <2> It is an infectious mononucleosis of severe course and glucocorticoids must be administered. <3> It is an infectious mononucleosis of severe course and treatment with acyclovir should be started. <4> Perform a biopsy / aspirate of bone marrow and if hemophagocytosis is confirmed, start treatment with immunosuppressants.
Example Output: medicine

Example Input: Question: It is an oncogen: 
 Options:  <0> NF1 <1> P53 <2> RB <3> cMYC. <4> WT1.
Example Output:
biology