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: One of the following types of transport through membranes does NOT exist: 
 Options:  <0> Ion transport facilitated by ionophore (against electrochemical gradient). <1> Facilitated diffusion (in favor of electrochemical gradient) <2> Primary active transport (against electrochemical gradient). <3> Ionic channel (in favor of electrochemical gradient). <4> Simple diffusion (in favor of concentration gradient).
Example Output: pharmacology

Example Input: Question: The Pearson correlation coefficient: 
 Options:  <0> It is always greater than 1. <1> It is always less than 1. <2> It is between 0 and 1. <3> It is between -1 and 0. <4> It is between -1 and 1.
Example Output: chemistry

Example Input: Question: To silence messenger RNA (mRNA) siRNAs and miRNAs are usually linked to your: 
 Options:  <0> TATA box. <1> 5'-UTR. <2> 5 'cap. <3> 3'-UTR. <4> Poly (A) 3 tail.
Example Output:
biology