A 49-year-old with nonischemic chest pain, normal ECG, HEART score 2, and an initial negative high-sensitivity troponin presents to the ED. Best next step?ARepeat high-sensitivity troponin at 1-3 hours and, if negative and unchanged, discharge with follow-upBImmediate inpatient admission and stress testingCSingle conventional troponin at 6 hours onlyDStart dual antiplatelet therapy and admitECT coronary angiography emergently regardless of riskCheck my answer