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 Input:
Question: In relation to the physiology of the complement system, one of the following statements is false:
Options: <0> Most of its components are inactive. <1> Its mode of activation is similar to the coagulation cascade. <2> It is subject to strict control of regulatory mechanisms. <3> It is only activated by two different routes: the classical and the alternative. <4> During its activation, multimolecular complexes are formed.

Ex Output:
pharmacology

Ex Input:
Question: Sumatriptan is a first generation anti-migrant triptan, structurally characterized by having a heterocycle:
Options: <0> Imidazoic <1> Piperidinic <2> Indic. <3> Pirrolico. <4> Oxazolic.

Ex Output:
pharmacology

Ex Input:
Question: In general, viruses that have a naked capsid:
Options: <0> They are stable against drying. <1> They are commonly released from the host cell by budding. <2> They are very sensitive to detergents. <3> They are very sensitive to the conditions in the intestinal tract. <4> They can not be neutralized by host antibodies.

Ex Output:
biology