Select all the medications a physician may order to treat a H. Pylori infection that is causing a peptic ulcer? (Select All that Apply.)

A. Bismuth Subsalicylates: Bismuth is part of quadruple therapy, helping suppress H. pylori and protect the stomach lining. B. H2 Blockers: These reduce stomach acid to help heal ulcers (e.g., ranitidine, famotidine). C. Proton Pump Inhibitors (PPIs): PPIs (e.g., omeprazole) block acid production at the source and are first-line agents. D. Antibiotics: Two or more antibiotics (e.g., amoxicillin, clarithromycin) are used to eradicate H. pylori. E. Anticholinergics: Not used in H. pylori treatment; they may reduce GI motility but are not part of the standard treatment regimen.