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.

[Q]: 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.
[A]: nursery


[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.
[A]: medicine


[Q]: Question: Regarding the use of virtual reality on display, what is the correct answer? 
 Options:  <0> It totally replaces the real exposure. <1> Any real stimulus can be programmed with accuracy virtually. <2> Virtual reality allows the therapist to build a clinically meaningful environment. <3> Studies indicate better results than imaginative techniques. <4> Patients usually do not present difficulties in the virtual context.
[A]:
psychology