This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'H. pylori have been implicated in all, except \nSelect and explain. \nA. Gastric ulcer, B. Gastric lymphoma, C. Gastric leiomyoma, D. Gastric carcinoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: H. pylori infection is almost always present in the setting of active chronic gastritis and is present in most patients with duodenal (80% to 95%) and gastric (60% to 90%) ulcers.H. pylori infection was associated with a twofold increased risk of developing gastric cancer. There is also a strong association between mucosa-associated lymphoid tissue (MALT) lymphoma and H. pylori infection.Sabiston 20th edition pg: 1198', 'role': 'assistant'}]