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: In strict vegetarians, a lack of one of the following vitamins may appear: 
 Options:  <0> B12 vitamin. <1> Vitamin C. <2> Retinol <3> Folate <4> Niacin
answer:
nursery


question:
Question: In the first stage of Fairburn's behavioral cognitive treatment for bulimia nervosa, one of the objectives is: 
 Options:  <0> Modify maladaptive social interaction patterns. <1> Establish effective communication patterns. <2> Work on the suppression of diet follow-up. <3> Modify adaptive family functioning patterns. <4> Present the model that explains the maintenance of the problem.
answer:
psychology


question:
Question: A 52-year-old male presents with acute form a confusional syndrome, paresis of both external ocular rectus muscles and gait ataxia. 
 Options:  <0> Hyperglycemic encephalopathy. <1> Korsakoff encephalopathy. <2> Cerebellar infarction. <3> Administer thiamin immediately. <4> Lead poisoning.
answer:

medicine