Question ID:PT63 S3 Q1 Passage:Commentator: In last week's wreck involving one of Acme Engines' older locomotives, the engineer lost control of the train when his knee accidentally struck a fuel shut-down switch. Acme claims it is not liable because it never realized that the knee-level switches were a safety hazard. When asked why it relocated knee-level switches in its newer locomotives, Acme said engineers had complained that they were simply inconvenient. However, it is unlikely that Acme would have spent the $500,000 it took to relocate switches in the newer locomotives merely because of inconvenience. Thus, Acme Engines should be held liable for last week's wreck. Stem:The point that Acme Engines spent $500,000 relocating knee-level switches in its newer locomotives is offered in the commentator's argument as Correct Answer Choice:EChoice A:proof that the engineer is not at all responsible for the train wreck Choice B:a reason for believing that the wreck would have occurred even if Acme Engines had remodeled their older locomotives Choice C:an explanation of why the train wreck occurred Choice D:evidence that knee-level switches are not in fact hazardous Choice E:an indication that Acme Engines had been aware of the potential dangers of knee-level switches before the wreck occurred