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.

[Q]: Question: In what type of hearing loss is the phenomenon of recruitment or recruitment characteristic? 
 Options:  <0> Transmission hearing loss. <1> Mixed hearing loss. <2> Central hearing loss. <3> Retrocochlear hearing loss. <4> Cochlear hearing loss.
[A]: medicine


[Q]: Question: The organometallic react with the nitriles giving: 
 Options:  <0> Amino acids. <1> Lactones. <2> Alcohols <3> Ketones <4> None of the above.
[A]: chemistry


[Q]: Question: Which of the following drugs has shown in controlled studies that can increase the effectiveness of exposure therapy in the treatment of specific phobias? 
 Options:  <0> Alprazolam <1> Quetiapine <2> D-cycloserine. <3> Bupropion. <4> Buspirona.
[A]:
psychology