TASK DEFINITION: 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.
PROBLEM: Question: The procedure to apply a plaster includes: 
 Options:  <0> Choose a band 10 cm wide. <1> Cover the previous row with one third of the width of the bandage. <2> Handle the plaster in the process of drying with the palms of the hands. <3> Support the cast member on a hard surface. <4> Cover the plaster to allow it to set.

SOLUTION: nursery

PROBLEM: Question: What type of amino acid side chains will compete with saline ions for solvation water ?: 
 Options:  <0> Apolares. <1> Aliphatic <2> Aromatic <3> Polar <4> Without charge.

SOLUTION: chemistry

PROBLEM: Question: Histone deacetylases (HDAC) promote: 
 Options:  <0> A less condensed chromatin. <1> A weaker link between histones and DNA in nucleosomes. <2> The acetylation of lysine residues in histones. <3> That the poly (A) tail of the histone messenger RNAs be more extensive. <4> The termination of the transcription and the genetic silencing.

SOLUTION:
pharmacology