Identify the unstated assumption in the argument: 'Autonomous vehicles will significantly reduce urban traffic fatalities because human driver error causes over ninety percent of automobile accidents.'

Answer and explanation

Correct answer: C. Autonomous vehicles will not introduce new failure modes causing comparable fatal accidents

  1. Step 1: The argument concludes fatalities will fall because human errors are eliminated. Step 2. This assumes that autonomous technology will not create new, equally severe fatal failure modes. Answer: Autonomous vehicle software systems will not introduce failure modes that cause comparable numbers of fatal accidents. Why not the others: The argument does not require license surrender, pedestrian declines, or vehicle bans to hold logically.

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