重症珠蛋白生成障碍性贫血其红细胞指数为（）

A.MCV：80～100flMCH：27～34pgMCHC：320～360g/L

B.MCV：＜80flMCH：＜27pgMCHC：＜320g/L

C.MCV：＜80flMCH：＜27pgMCHC：320～360g/L

D.MCV：＞100flMCH：＞34pgMCHC：＜320g/L

E.MCV：＞100flMCH：＞34pgMCHC：320～360g/L