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: Enzymatic regulation by reversible covalent modification: 
 Options:  <0> It involves the breaking of the peptide bond. <1> It requires the action of another enzyme. <2> It always involves phosphorylation reaction. <3> It never affects allosteric enzymes. <4> The enzyme never comes in two forms.
Example Output: biology

Example Input: Question: A 70-year-old man presented with progressive dyspnea and a non-productive cough several years old. In chest X-ray, pleural plaques are seen in the mediastinal and diaphragmatic pleura. On CT, these plaques are confirmed, also appreciating the presence of reticulonodulillar involvement predominantly in lower fields. Among the following, what attitude would you recommend in the first place? 
 Options:  <0> Complete your smoking history. <1> Inquire about occupational exposure. <2> Request blood tests to rule out eosinophilia. <3> Do complete respiratory functional tests. <4> Propose a transbronchial biopsy.
Example Output: medicine

Example Input: Question: The concept of latent scheme in the cognitive theory of depression by Aaron Beck means that they are cognitive schemes: 
 Options:  <0> Of which the individual is not aware. <1> That directly influence the mood in a continuous but subtle way. <2> They are not permanently activated in vulnerable individuals and are activated only in the face of specific stressors. <3> They are active permanently but with an intensity that increases in each relapse or recurrence. <4> That do not require mental effort for its activation.
Example Output:
psychology