A 38-year-old treatment-naïve patient tests positive for Helicobacter pylori with unknown susceptibility. Which regimen is recommended first-line in the U.S. when susceptibilities are not available?APPI + clarithromycin + amoxicillin for 7 daysBConcomitant therapy (PPI, amoxicillin, clarithromycin, metronidazole) for 10 daysCOptimized bismuth quadruple therapy for 14 daysDVonoprazan + amoxicillin for 7 daysERifabutin triple therapy for 7 daysCheck my answer