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: The non-selective medium commonly used for the growth of gonococcus (Neisseria gonorrhoeae) is: 
 Options:  <0> Chocolate agar. <1> Agar blood. <2> Mannitol saline agar. <3> Nutritious agar <4> MacConkey agar.
[A]: biology


[Q]: Question: What simple reinforcement programs produce a more stable response pattern ?: 
 Options:  <0> Those of fixed ratio. <1> Those of variable reason. <2> Those of fixed interval. <3> Those of variable interval. <4> All reinforcement programs produce similar response rates.
[A]: psychology


[Q]: Question: The pulmonary surfactant: 
 Options:  <0> It is secreted by type I pneumocytes. <1> Stabilizes the alveoli. <2> Its main component is albumin. <3> Increases the surface tension of the alveolus. <4> It is only in the small alveoli.
[A]:
biology