A 50-year-old man requires eradication therapy for Helicobacter pylori. He has a known allergy to penicillin (history of anaphylaxis). What is the recommended first-line treatment regimen?AOmeprazole + Amoxicillin + Clarithromycin for 7 daysBOmeprazole + Amoxicillin + Metronidazole for 7 daysCOmeprazole + Clarithromycin + Metronidazole for 7 daysDOmeprazole + Levofloxacin + Amoxicillin for 10 daysEBismuth-based quadruple therapy for 14 daysCheck my answer