确定贫血的常用指标是

确定贫血的常用指标是
A、MCH、MCV、MCHC
B、RBC、MCH、RDW
C、RBC、HB、HCT
D、HCT、RDW、MCHC
E、MCV、RBC、MCHC
正确答案：RBC、HB、HCT