Police officer: Traffic on major highways has been sluggish due to increased cell phone use while driving. Cell phone use while driving causes drivers to drive under the speed limit and to cause other drivers to pass them on the road. Drivers argue that talking on cell phones is necessary to discuss plans and ask directions and that traffic delays are inevitable. However, in Denton, the local officials have created a special lane for drivers talking on cell phones. This prevents these drivers from slowing down the rest of traffic on the highway. Ttherefore, it is possible to allow people to make plans and find out how to get to their destinations without causing sluggish traffic. The police officer's argument proceeds by ['proposing an alternative method for drivers to discuss their plans and ask directions', 'producing a counterexample to a general assertion', "appealing to the police officer's training on highway safety to discredit a commonly held view", 'pointing out a dissimilarity between drivers who talk on cell phones while driving and drivers in Denton']