A 69-year-old with melena and orthostasis has Hgb 6.9 g/dL and CAD with stable angina. What RBC transfusion threshold is most appropriate per patient blood management guidance?ATransfuse at hemoglobin <8 g/dL due to cardiovascular diseaseBTransfuse only if Hgb <7 g/dL regardless of CADCDo not transfuse until Hgb <6 g/dLDTransfuse immediately to Hgb >10 g/dLEAvoid transfusion; give IV iron onlyCheck my answer