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 is - 
Select and explain. 
A. Vacuolating cytotoxin, B. Antiurease antibody detection specific for type I, C. Found in the jejunum, D. Treatment is Al(OH)2
A: Vacuolating cytotoxin
Answer: A: Vacuolating cytotoxin 
Explanation: None