单项选择题

A.pH=10~11(lgαY(H)=0.07~0.45)
B.pH=8~9(lgαY(H)=1.29~2.26)
C.pH=5~6(lgαY(H)=4.65~6.45)
D.pH=1~2(lgαY(H)=13.52~17.20)