A 48-year-old treatment-naïve patient is diagnosed with Helicobacter pylori infection and has no prior macrolide exposure documented. Local clarithromycin resistance is >15%. What is the recommended first‑line eradication regimen?AClarithromycin triple therapy for 7 daysBConcomitant therapy (PPI + amoxicillin + clarithromycin + metronidazole) for 10 daysCRifabutin-based triple therapy for 10 days as first‑lineDOptimized bismuth quadruple therapy for 14 daysEHigh-dose dual PPI + amoxicillin for 5 daysCheck my answer