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
It is true about H. Pylori that it - 
Select and explain. 
A. Is gram -ve spiral organism, B. Is a protozoa, C. Causes chronic gastritis in adults due to reinfection, D. Treatment prevents gastric lymphoma
D: Treatment prevents gastric lymphoma
Answer: D: Treatment prevents gastric lymphoma 
Explanation: Ans. is 'd' i.e., Treatment prevent gastric lymphoma