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: Under physiological conditions, the secondary structure of the most frequent DNA in the cells is: 
 Options:  <0> B-DNA. <1> Z-DNA. <2> A-DNA. <3> G-DNA. <4> H-DNA.
answer:
biology


question:
Question: A 54-year-old man diagnosed with diabetes mellitus type 2 came to our clinic. He reported fever of 40ºC with chills and shivering, arthromyalgia and headache, which is why he started treatment with paracetamol. The painting began 24 hours before his return to Spain. After 3 days, he presented with a generalized maculo-papular rash that progressed to the formation of more intense petechiae in the lower limbs. It provides analytics where leukopenia stands out with 3,200 / mm3 and platelets 91,000 / mm3 and mild elevation of aminotransferases. Thickness, peripheral blood smear, polymerase chain reaction (PCR) and malaria antigen are negative. What is the most likely suspected diagnosis? 
 Options:  <0> Coronavirus infection. <1> Lymphocyte choriomeningitis. <2> Dengue. <3> Chikungunya virus infection. <4> Encephalitis of Saint Louis.
answer:
medicine


question:
Question: The deficit of which of the following enzymes is NOT a cause of porphyria ?: 
 Options:  <0> Protoporphyrinogen oxidase. <1> Delta-amino levulinic synthetase. <2> Coproporphyrinogen III oxidase <3> Uroporphyrinogen decarboxylase. <4> Uroporphyrinogen III cosintetase.
answer:

pharmacology