PT88.S4.Q23 - Conversing on a cell phone while driving

2ndTimestheCharm

We're looking for the NA.
P1: When a driver is talking on her cell, the person on the other end of the call can't see if her driving conditions become difficult.
P2: If the driver is instead talking to a passenger, the passenger is usually quiet or can help by warning about any difficulties.
Therefore, talking on a cell while driving is more dangerous than talking to a passenger.

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What absolutely HAS to be true?

E ) Talking on a cell is no more dangerous than talking to a passenger who continues to talk during difficult driving situations. This is certainly not our NA since our conclusion is about talking on a cell being MORE dangerous, especially because the continuing to talk could be the passenger providing helpful warnings.

D ) If a passenger's helpful warnings are just as likely to distract the driver, this actually weakens our argument.

C ) Don't give a hoot what the drivers believe.

B ) Of course driving is less dangerous if the driver isn't talking to anyone, but that's not what we're comparing.

A ) For this argument to hold up, we have to assume that speaking to a driver during a difficult driving situation increases the danger (ie, risk of accident), the one exception being (unless) the person she's speaking to is providing helpful warnings. Bingo. I overlooked this AC at first because it's asking us to infer that since the person on the other end of the call can't see the difficult driving situation, they are going to keep talking. But I guess that's a small enough and fair enough inference.