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.

Question: Point out which of the following guidelines belongs to the Stress Reduction Program of Kabat-Zinn (University of Massachusetts): 
 Options:  <0> Acceptance and commitment therapy. <1> Behavioral activation therapy. <2> Psychoeducation and mindfulness. <3> Dialectical therapy. <4> Therapy of common factors.
psychology

Question: Reactions in which there are no intermediates are described as: 
 Options:  <0> Concerted. <1> Polar <2> Radicals <3> Homolitic <4> Heterolithic
chemistry

Question: Secondary chromosomal constrictions contain: 
 Options:  <0> Single sequence DNA <1> Ribosomal genes. <2> Genes micro-RNAs. <3> Centromeric DNA. <4> Genes of histomnas.

biology