PT 60 S1 Q18

   Bus driver: Had the garbage truck not been exceedingthe ... ...

Which one of the following principles, if valid, most helps to justify the reasoning in the bus driver's argument?
(A) If a vehicle whose driver is violating a traffic regulation collides with a vehicle whose driver is not, the driver of the first vehicle is solely responsible for the accident.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-A, June '10 LSAT (PT 60 Sec. 1)