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.

Example Input: Question: A teenager with obsessive-compulsive disorder phones the Toxicological Information Service to ask if he can safely use an insecticide for cockroaches. What is the name of this escape behavior?
Options: <0> Ascertainment. <1> Rationalization. <2> Reinsurance. <3> Ritualization <4> Testing.
Example Output: psychology

Example Input: Question: The treatment of 1-hexyne with 1 mole of hydrogen bromide results in:
Options: <0> 1-bromo-1-hexene. <1> 1-bromo-2-hexene. <2> 1-bromo-3-hexene. <3> 2-bromo-1-hexene. <4> 2-bromo-2-hexene.
Example Output: chemistry

Example Input: Question: Pseudomonas aeruginosa is:
Options: <0> Able to ferment a large variety of sugars. <1> Often resistant to many antibiotics for medical use. <2> Responsible for toxi-alimentary infections. <3> Part of the normal microbiota of the skin. <4> A commensal bacterium of the digestive tract.
Example Output:
biology