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: 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.

Ex Output:
pharmacology

Ex Input:
Question: The simultaneous expression of IgM and IgD is observed for the first time in lymphocytes:
Options: <0> Early Pro-B. <1> B mature. <2> Late Pro-B. <3> Pre-B. <4> B immature

Ex Output:
biology

Ex Input:
Question: A health professional is exempted from the obligation of professional secrecy in the following circumstance:
Options: <0> Presence of an infectious disease. <1> Suicide attempt. <2> Refusal of the patient to avoid contagion to other people. <3> Suspicion of mistreatment. <4> Upon the request of a lawyer.

Ex Output:
nursery