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: When comparing the characteristics of pragmatic or confirmatory clinical studies with explanatory or exploratory clinical studies, which of the following is an advantage of the former? 
 Options:  <0> Information about subgroups of patients representative of the usual clinical practice. <1> Very homogeneous sample, with little variability. <2> Greater capacity to detect differences in the effectiveness of interventions. <3> Greater internal validity <4> Smaller sample size
Example Output: medicine

Example Input: Question: Which of the following traumatic injuries requires, in order to avoid local complications, an earlier treatment? 
 Options:  <0> Posterior traumatic luxation of the hip. <1> Displaced fracture of the femoral neck of the elderly. <2> Trochanteric fracture of the elderly. <3> Cup fracture. <4> Subtrochanteric fracture.
Example Output: medicine

Example Input: Question: In comparison with polyclonal antibodies, a monoclonal antibody: 
 Options:  <0> It has low cost. <1> It has heterogeneous specificity. <2> It is of variable specificity. <3> Recognizes a single epitope. <4> It is of variable affinity.
Example Output:
biology