This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
True about H. pylori 
Select and explain. 
A. Gram +ve spiral organism, B. It is a protozoa, C. Causes chronic gastritis in adults due to re-infection, D. Treatment causes regression of gastric lymphoma
D: Treatment causes regression of gastric lymphoma
Answer: D: Treatment causes regression of gastric lymphoma 
Explanation: None