PT 61 S2 Q21

A government study indicates that raising speed limits toreflect the actual ... ...

Which one of the following principles, if valid, most helps to justify the reasoning above?
(A) Uniform national speed limits should apply only to high-speed roadways.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-A, Oct. '10 LSAT (PT 61 Sec. 2)