<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 30-year-old man who recently emigrated from Southeast Asia presents with heartburn and a bad taste in his mouth. He says the symptoms have been present for the last 6 months and are much worse at night. He describes the pain as moderate to severe, burning in character, and localized to the epigastric region. He mentions that 1 month ago, he was tested for Helicobacter pylori back in his country and completed a course of multiple antibiotics, but there has been no improvement in his symptoms. Which of the following is the most likely diagnosis in this patient?? A: Gastric MALT mucosa-associated lymphoid tissue lymphoma, B: Gastric adenocarcinoma, C: Duodenal ulcer disease, D: Peptic ulcer disease, E: Gastroesophageal reflux disease,  <response>: This is a clinical vignette describing a 30-year-old man who recently emigrated from Southeast Asia and is presenting with symptoms of heartburn, bad taste in mouth, and epigastric pain that is worse at night. He was previously treated for H. pylori but his symptoms have persisted. The key findings are:- Heartburn and epigastric pain worse at night - suggests gastroesophageal reflux disease GERD- Bad taste in mouth - can be associated with GERD - Prior treatment for H. pylori - rules out active H. pylori infection as a cause- Symptoms persisting after antibiotic treatment - makes peptic ulcer disease less likelyOf the choices given, gastroesophageal reflux disease GERD is the most likely diagnosis given the typical symptoms and lack of response to H. pylori treatment. Gastric MALT lymphoma, gastric cancer and duodenal ulcer disease are less likely in a 30-year-old without alarm symptoms.E: Gastroesophageal reflux disease 