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.

Input: Consider Input: Question: The epithelium of the epidermis is: 
 Options:  <0> Stratified keratinized plane. <1> Stratified non-keratinized plane. <2> Simple keratinized cylindrical. <3> Keratinized stratified cylindrical. <4> Cubic stratified.

Output: biology


Input: Consider Input: Question: With what aspect does the difficulty of the elderly relate to solve new problems ?: 
 Options:  <0> Creativity. <1> Motivation. <2> Verbal fluency. <3> Memory. <4> Response time.

Output: nursery


Input: Consider Input: Question: The cells of the sinus node present: 
 Options:  <0> Stable membrane potential. <1> Contractile capacity <2> Depolarization faster than Purkinje fibers. <3> Depolarization mediated by Ca2 + channels. <4> Long plateau.


Output: biology