question: Q:A 46-year-old overweight male presents to his primary care physician for an annual checkup. He has a history of gastroesophageal reflux disease (GERD) with biopsy confirming Barrett's esophagus on therapy with omeprazole. Review of systems is unremarkable, and the patient is otherwise doing well. Vitals are within normal limits and stable. The patient asks about the need for continuing his omeprazole therapy. You recommend he continue his medication because of which of the following most probable long-term sequelae associated with Barrett's esophagus?? 
  {'A': 'Adenocarcinoma', 'B': 'Squamous cell carcinoma (SCC)', 'C': 'Transitional cell carcinoma', 'D': 'Gastro-intestinal stromal tumor (GIST)', 'E': 'MALT lymphoma'},