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.

Ex Input:
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.

Ex Output:
pharmacology


Ex Input:
Question: In strict vegetarians, a lack of one of the following vitamins may appear: 
 Options:  <0> B12 vitamin. <1> Vitamin C. <2> Retinol <3> Folate <4> Niacin

Ex Output:
nursery


Ex Input:
Question: A patient with dyspepsia will undergo a screening test for Helicobacter pylori. Before carrying out the test, the patient should know that: 
 Options:  <0> Treatment with proton pump inhibitors should be discontinued at least one week before the test. <1> Treatment with proton pump inhibitors should be discontinued at least two weeks before the test. <2> The use of antacids also modifies the results of the test. <3> The use of antibiotics does not modify the diagnostic tests for H. pylori. <4> Antibiotic treatments negativize the diagnostic tests for H. pylori, so these drugs should be avoided for one week before any diagnostic test.

Ex Output:

nursery