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: 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: A patient diagnosed with angina will NOT recommend:
Options: <0> Alternating activity with periods of rest. <1> Take oral nitroglycerin in the morning. <2> Avoid extreme cold. <3> Follow a diet rich in fiber. <4> Leave the tobacco.
answer:
nursery

question:
Question: The transmission of hepatitis E virus is via:
Options: <0> Fecal-oral <1> Body secretions. <2> Bloodline <3> Placenta. <4> Aerial
answer:
biology