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 the synthesis of DNA, the quinolones act:
Options: <0> Joining the double helix and thus blocking the progress of the replication fork. <1> Interlacing in the double helix and thus causing errors in the transcription. <2> On DNA gyrase. <3> As nucleotide analogs that are incorporated into DNA. <4> About DNA polymerases.

Ex Output:
biology

Ex Input:
Question: The restriction enzymes hydrolyze bonds:
Options: <0> Phosphodiester <1> Glucosidics <2> Peptides <3> Ionic <4> By hydrogen bridges.

Ex Output:
chemistry

Ex Input:
Question: In the Th2-B cooperation process, what does the Th2 cell recognize on the surface of the B cell?
Options: <0> The antigen bound to a surface immunoglobulin. <1> A fragment of antigen bound to the CD21 molecule. <2> Several cross-linked antigen fragments. <3> A fragment of antigen bound to a class II histocompatibility molecule. <4> A fragment of antigen bound to a class I histocompatibility molecule.

Ex Output:
pharmacology