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 Q]: Question: Pseudomonas aeruginosa is: 
 Options:  <0> Able to ferment a large variety of sugars. <1> Often resistant to many antibiotics for medical use. <2> Responsible for toxi-alimentary infections. <3> Part of the normal microbiota of the skin. <4> A commensal bacterium of the digestive tract.
[EX A]: biology

[EX Q]: Question: Question linked to image nº1 40-year-old man with no relevant background. For 4 weeks, refers to diarrheic stools, associated with jaundice of skin and mucous membranes, coluria, hypocholia and pain in right hypochondrium, accompanied by weight loss (10 kg approx) and intense itching. In the analytical highlights: Total bilirubin: 15.3 mg / dl. Alanine aminotransferase: 70 U / l Aspartate aminotransferase: 85 U / l. Serology for negative hepatitis and elevation of CA 19-9. Abdominal CT is performed. 3 axial sections are shown. In relation to the findings of the radiological test, which of the following statements is true? 
 Options:  <0> A tumoral mass is observed in the head of the pancreas that causes biliary and ductal dilatation compatible with adenocarcinoma. <1> Presence of diffuse thickening of the pancreas with arcuate Wirsung compatible with lymphoplasmacytic pancreatitis. <2> A tumoral mass is identified in a vesicular infundibulum compatible with vesicular adenocarcinoma. <3> Voluminous tumor lymphadenopathies are observed in the hepatic hilum that produce dilation of the bile duct. <4> Presence of multiple solid focal liver lesions compatible with diffuse liver metastases.
[EX A]: medicine

[EX Q]: Question: Patients with dysphagia should avoid the following foods, EXCEPT: 
 Options:  <0> Homogeneous purees. <1> With a fibrous texture, such as asparagus, pineapple, serrano ham. <2> That contain thorns and bones. <3> They crumble in the mouth, like rice, potato chips. <4> Sticky and dense foods, like sliced ​​bread.
[EX A]:
nursery