A 70-year-old with chest pain and prior normal angiogram 5 years ago has low-risk features today. Which statement matches the 2021 chest pain guideline regarding diagnostic testing?AUse structured risk assessment to avoid unnecessary testing in low-risk patientsBAll chest pain patients need stress testing before dischargeCCT coronary angiography is mandatoryDHigh-sensitivity troponin testing is optionalEEchocardiography is required in all casesCheck my answer