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: The structure of the personality can be organized according to: 
 Options:  <0> The three-dimensional model of R.B. Cattell. <1> The five-factor proposal of Zuckerman. <2> The five basic factors of Cantor and Kihstrom. <3> The sixteen factors of H.J. Eysenck. <4> The Monorrasgo theory of Costa and McCrae.
Example Output: psychology

Example Input: Question: All RNA (-) viruses present: 
 Options:  <0> Segmented genome. <1> Lipid envelope. <2> Helical nucleocapsid <3> Icosahedral nucleocapsid. <4> Reverse transcriptase.
Example Output: biology

Example Input: Question: The development of B cells in the bone marrow: 
 Options:  <0> It is dependent on the antigen. <1> It begins with gene rearrangements in the kappa light chain. <2> It is dependent on stromal cells. <3> It begins with gene rearrangements in the delta heavy chain. <4> It is dependent on T lymphocytes.
Example Output:
biology