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.

Ex Input:
Question: By means of the angular methods used to evaluate the flow properties of a powder, it is determined:
Options: <0> The ease with which the solid sets in motion. <1> The angle of repose. <2> The flow velocity <3> The resistance to displacement. <4> The density of the powder.

Ex Output:
pharmacology

Ex Input:
Question: Epidemiology allows early detection of changes in the incidence of a certain disease in the population. For this, the most correct thing is to use:
Options: <0> The etiological investigation. <1> The description of the natural history of the disease. <2> Epidemiological surveillance. <3> The evaluation of the functioning of the services. <4> None of the previous answers is correct.

Ex Output:
nursery

Ex Input:
Question: The new proteins destined for secretion are synthesized in:
Options: <0> Golgi apparatus. <1> Smooth endoplasmic reticulum. <2> Free polysomes. <3> Nucleus. <4> Rough endoplasmic reticulum.

Ex Output:
chemistry