instruction:
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:
Question: With respect to the pharmacological treatment for depression, it can be stated that: 
 Options:  <0> The side effects of Selective Serotonin Reuptake Inhibitors (SSRIs), such as fluoxetine, are zero. <1> Treatments with SSRIs are more effective than those using cyclic antidepressants. <2> In general, pharmacological treatments should not be combined with psychological treatments. <3> They have been shown to be effective for 50% of patients, while the efficacy of placebo would be of the order of 30%. <4> Monoamine oxidase inhibitors (MAOIs) have been shown to be superior to other antidepressants in the treatment of severe depression.
answer:
psychology


question:
Question: Relating to topoisomerases: 
 Options:  <0> They are enzymes that convert the D-amino acids into L-amino acids. <1> They are enzymes that synthesize DNA. <2> They are enzymes that participate in the union of the subunits of the ribosome. <3> They are enzymes that denature DNA. <4> DNA gyrase is a special toposiomerase.
answer:
chemistry


question:
Question: The immersion oil used for microscopic observation: 
 Options:  <0> Protects the sample from the oxidizing effect of air. <1> Lubricate the objective lens. <2> Reduces refraction and increases resolution. <3> It acts as a lens that increases magnification. <4> Avoid dehydration of the preparation.
answer:

biology