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: Regarding gastroesophageal reflux disease, which of the following statements is true? 
 Options:  <0> The intensity and frequency of heartburn has little relationship with the presence and severity of endoscopic esophagitis. <1> Most patients with gastroesophageal reflux disease have esophagitis at endoscopy. <2> Treatment with proton pump inhibitors usually achieves good control of symptoms but is not superior to placebo in the endoscopic cure of esophagitis. <3> Barrett's esophagus can progress to low-grade epithelial dysplasia, high-grade epithelial dysplasia, and finally squamous cell carcinoma of the esophagus. <4> Endoscopic screening and surveillance programs have unequivocally shown to be able to reduce mortality in patients with Barrett's esophagus.
[EX A]: medicine

[EX Q]: Question: A 76-year-old woman came to the emergency room referring to pain in the right groin and vomiting for about 6 hours. On examination, a hard consistency tumor is palpable just below the line joining the anterosuperior iliac spine and the pubis (which corresponds to the location of the inguinal ligament). Most likely, it is one: 
 Options:  <0> Direct inguinal hernia. <1> Spiegel hernia. <2> Indirect inguinal hernia. <3> Femoral hernia (crural). <4> Obturator hernia
[EX A]: medicine

[EX Q]: Question: One of the following enzymes is classified as MAL: 
 Options:  <0> Lactate dehydrogenase - Oxidoreductase. <1> Chymotrypsin - Hydrolase. <2> Fumarasa - Liasa. <3> Aminoacyl-tRNA synthetase - Ligase <4> Nucleoside monophosphate kinase - Isomerase.
[EX A]:
pharmacology