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: Acetylation of histones affects transcription: 
 Options:  <0> Blocking the incorporation of other components of the transcription machinery. <1> Preventing the remodeling of chromatin. <2> Facilitating the action of helicases. <3> Decreasing sensitivity to nuclear receptors. <4> Reducing the affinity of histones for DNA.

SOLUTION: chemistry

PROBLEM: Question: What do behavioral treatments for major depressive disorder have in common? 
 Options:  <0> The use of exposure techniques to stressful situations. <1> The main objective of modifying maladaptive beliefs and assumptions that make a person vulnerable to depression. <2> Which are unstructured therapies and without a limited number of sessions. <3> The main objective of increasing the positive reinforcement received by the depressed person. <4> The main objective of relating depression to problematic interpersonal situations.

SOLUTION: psychology

PROBLEM: Question: Which of the following factors influences the glomerular filtration rate (GFR) ?: 
 Options:  <0> Blood pressure <1> The renal blood flow. <2> Self-regulation by myogenic responses and tubuloglomerular feedback. <3> Hormones such as Angiotensin II and neurons of the sympathetic nervous system. <4> All are correct.

SOLUTION:
nursery