单项选择题

A.WBC2.4×109/L,N44%,L56%
B.WBC3.4×109/L,N70%,L30%
C.WBC5.5×109/L,N55%,L45%
D.WBC5.8×109/L,N70%,L30%
E.WBC19.2×109/L,N80%,L20%