下列关于电解质的说法正确的是（　　）

A．电解质属于化合物

B．电解质都能导电

C．能导电的物质都是电解质

D．电解质溶液通电后发生电离

_____ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.

A．Even if

B．As far as

C．If only

D．So long as