Critical Reasoning (CR) | Bus driver: Had the garbage truck not been exceeding the speed limit

Bus driver: Had the garbage truck not been exceeding the speed limit, it would not have collided with the bus I was driving. I, on the other hand, was abiding by all traffic regulations—as the police report confirms. Therefore, although I might have been able to avoid the collision had I reacted more quickly, the bus company should not reprimand me for the accident.

Which one of the following principles, if valid, most helps to justify the reasoning in the bus driver’s argument?

(A)If a
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