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 72-year-old woman with type 2 diabetes and chronic renal failure in stage 5. If a pulmonary thromboembolism is suspected, indicate which diagnostic test would be contraindicated: 
 Options:  <0> Transthoracic echocardiogram. <1> Pulmonary scintigraphy <2> Pulmonary angioCT. <3> Electrocardiogram. <4> Chest x-ray.
Example Output: medicine

Example Input: Question: Orally administered proton pump inhibitor drugs: 
 Options:  <0> Neutralize hydrochloric acid from gastric secretion. <1> They dye the stools black. <2> They block the histaminergic receptor. <3> They block the gastrin receptor. <4> They require enteric cover.
Example Output: medicine

Example Input: Question: A primary standard solution in a titration should not: 
 Options:  <0> Be prepared from a high purity reagent. <1> Have an exactly known concentration. <2> Keep your composition over time. <3> React instantly. <4> Give rise to secondary reactions.
Example Output:
chemistry