A 40-year-old man is diagnosed with H. pylori-positive duodenal ulcer. He has no relevant drug allergies. According to Australian recommendations, what is the most appropriate first-line eradication regimen?AProton pump inhibitor plus amoxicillin for 7 daysBProton pump inhibitor plus clarithromycin plus amoxicillin for 7 daysCProton pump inhibitor plus metronidazole alone for 14 daysDClarithromycin monotherapy for 14 daysEProton pump inhibitor plus amoxicillin plus metronidazole for 3 daysCheck my answer