A 45-year-old with suspected peptic ulcer disease tests positive for H. pylori and completes optimized bismuth quadruple therapy for 14 days. Which statement about test-of-cure is correct?ANo test-of-cure is needed if symptoms resolveBTest for cure at 1 week after therapy while on PPICTest for cure >=4 weeks after completion of therapy and after stopping PPIs for ~2 weeksDSerology (IgG) is preferred for test-of-cureEUrea breath test should be avoided after treatmentCheck my answer