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: A 24-year-old student who, after three weeks of a cold in the upper respiratory tract, visited the doctor for a sensation of numbness in his hands and loss of limb strength in recent days. The picture was preceded by low back pain. In the exploration, it stands out, decrease of asymmetric muscular force in upper and lower extremities, loss of osteotendinous reflexes. In this patient the most likely diagnosis is: 
 Options:  <0> Myasthenia gravis. <1> First outbreak of multiple sclerosis. <2> Acute inflammatory demyelinating polyradiculopathy. <3> Dermatomyositis <4> Amyotrophic Lateral Sclerosis.
Example Output: medicine

Example Input: Question: One of the components of injectable formulations are preservatives. This category includes different excipients with different mechanisms of action. Which of the following is used as a chelating agent ?: 
 Options:  <0> Butylhydroxyanisole. <1> Ethylenediaminetetraacetic acid. <2> Ascorbic acid. <3> Propyl gelate <4> Tocopherol.
Example Output: pharmacology

Example Input: Question: The corpuscles of Pacini: 
 Options:  <0> They are innervated by unmyelinated fibers. <1> They are mechanoreceptors of slow adaptation. <2> They have small receptor fields. <3> They are located in deep areas of the dermis. <4> They are thermoreceptors.
Example Output:
biology