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 Q]: Question: What is the most commonly used term to designate the most intense degree of distraction and the complete absence of attention? 
 Options:  <0> Attentional perplexity. <1> Attention indifference. <2> Hyperprosexia. <3> Mental absence <4> Aprosexia.
[EX A]: psychology

[EX Q]: Question: What consequence of RNA bases will be produced when the AGGCCTTTACGC DNA fragment is transcribed ?: 
 Options:  <0> TCCGGAAATGCG. <1> AGGCCUUUACGC. <2> UGGCCUUUUGCG <3> UGGCCUUUUCGC. <4> UCCGGAAAUGCG.
[EX A]: pharmacology

[EX Q]: Question: Topoisomerases: 
 Options:  <0> They modify the degree of DNA supercoiling. <1> They are a type of DNA polymerases. <2> They bind to the single-stranded DNA to prevent the double helix from forming. <3> They exhibit exonuclease activity. <4> They synthesize dNTPs.
[EX A]:
biology