A 38-year-old man is diagnosed with a duodenal ulcer associated with Helicobacter pylori. He has no drug allergies and takes no other medications. According to Canadian guidelines, what is the most appropriate first-line eradication regimen?APPI plus clarithromycin plus amoxicillin for 14 daysBPPI plus clarithromycin plus metronidazole for 7 daysCPPI alone for 8 weeksDPPI plus amoxicillin for 7 daysEPPI plus bismuth plus tetracycline plus metronidazole for 3 daysCheck my answer