How Does Helicobacter Pylori Persist in the Hostile Environment of the Stomach

Multiple Choice

How does Helicobacter pylori persist in the hostile environment of the stomach?

A) By expressing adhesin proteins that bind to molecules on the surface of gastric epithelial cells
B) By producing the enzyme urease, which locally neutralizes the gastric acid
C) By chemotaxis, using flagella, toward gastric epithelial cells
D) By producing toxins that target both epithelial cells and immune cells
E) All of the above