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: In studies that use meta-analysis for the systematic review of the results of psychotherapies, which is the most used dependent variable? : 
 Options:  <0> The number of depressive symptoms. <1> The size of the effect. <2> The systematized observation of the therapist. <3> The number of patients that has been cured. <4> The expectations of the patient.
Example Output: psychology

Example Input: Question: The kidneys secrete the hormone: 
 Options:  <0> Calcitriol. <1> Renina <2> Angiotensin II. <3> Aldosterone <4> Calcitonin
Example Output: biology

Example Input: Question: A nurse has detected, on different occasions, a real problem in the patients she attends that does not correspond to any of the diagnoses contained in the NANDA classification. The way to proceed so that it can be included in the taxonomy is to propose a structure that contains at least: 
 Options:  <0> The problem. The etiology Signs and symptoms <1> The problem. The etiology Signs and symptoms Studies of the cases and their results. <2> The problem defined. The most common and possible etiologies. Major and minor characteristics that indicate the existence of the problem. At least the results of an experimental study. <3> The label. Definition. Defining characteristics. Related factors Bibliographic support Appropriate interventions and results. <4> The label. Definition. Defining characteristics. Related factors Risk factor's. Bibliographic support Appropriate interventions and results.
Example Output:
nursery