The word "empirical" in Para. 3 most probably means" ______".

A．standardized tests should no longer be used
B．results of standardized tests accurately reflect the abilities of the testees
C．the value of standardized tests lies in their proper interpretation
D．special methods must be applied to the results of standardized tests

A．the necessity of standardized tests
B．the validity of standardized tests
C．the method used in interpreting the results of standardized tests
D．the theoretical grounds of standardized tests