用0.1mol/L,HCl滴定0.1mol/L NaOH的突跃范围为9.7~4.3,则0.01mol/LHCl滴定0.01mol/L NaOH的突跃范围应为
A.9.7~4.3
B.8.7~4.3
C.8.7~5.3
D.10.7~3.3