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: Orally administered proton pump inhibitor drugs: 
 Options:  <0> Neutralize hydrochloric acid from gastric secretion. <1> They dye the stools black. <2> They block the histaminergic receptor. <3> They block the gastrin receptor. <4> They require enteric cover.
medicine

Question: One of the main concepts of Acceptance and Commitment Therapy is: 
 Options:  <0> The relativization of the context. <1> The underlying reason. <2> The experiential avoidance. <3> The resistance to change. <4> Emotional vulnerability
psychology

Question: The cyclotron ion resonance by Fourier transform is the basis of: 
 Options:  <0> A mass ionization system useful for elementary analysis. <1> A system of atomization that is applied in atomic absorption for elements capable of generating hydrides. <2> A mass analyzer. <3> A system for introducing the sample in plasma emission spectrometry. <4> A detector system in mass spectrometry.

pharmacology