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: 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
Example Output: nursery

Example Input: Question: The chemical reactions of the splicing process of the introns during the maturation of the pre-mRNAs consists of: 
 Options:  <0> An oxidation-reduction reaction. <1> A transesterification reaction. <2> Two sequential transesterification reactions. <3> Three sequential transesterification reactions. <4> A transesterification reaction followed by another oxidation reaction.
Example Output: chemistry

Example Input: Question: If after establishing the confidence interval with respect to a difference between two independent means, we find that the zero value is not in the interval: 
 Options:  <0> We can not make any decision regarding the null hypothesis of equality of means. <1> We can not reject the null hypothesis of equality between population means. <2> We must reject the null hypothesis of equality between population means. <3> We accept the null hypothesis of equality between the population means. <4> We reject the alternative hypothesis of equality between population means.
Example Output:
psychology