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 characteristic is true with respect to the tests referred to the criterion? 
 Options:  <0> The purpose is to describe the subject in the continuum of some trait. <1> The objective is to maximize individual differences. <2> The scores obtained only have meaning in relation to the results of the normative group. <3> They allow to interpret the scores in absolute sense, without reference to any group. <4> The items are usually derived from some feature theory.
[EX A]: psychology

[EX Q]: Question: The lithium dialkyl-heptarate reacts with alkyl halides to produce, by formation of carbon-carbon bonds between the alkyl group of the halide and the alkyl group of the dialkyl acetate: 
 Options:  <0> Alcanes. <1> Alquenos <2> Alquinos. <3> Aromatics <4> Piranos.
[EX A]: chemistry

[EX Q]: Question: Which of the following characteristics of the genetic code is NOT CORRECT ?: 
 Options:  <0> The sequence of nitrogenous bases of a given gene has a fixed reading frame and no punctuation marks. <1> It is degenerate, because for many amino acids there is more than one codon that encodes it. <2> The degeneration of the genetic code supposes an adaptive mechanism that reduces the harmful effects of the mutations. <3> It is totally universal, allowing the heterologous expression of human proteins (eg insulin) in prokaryotic organisms such as E. coli. <4> Its reading is always done from the 5'-phosphate end towards the hydroxyl of the messenger RNA (mRNA).
[EX A]:
chemistry