A study tested drivers for reaction times to road hazards while they were using cell phones, listening to the radio, and listening to a conversation inside the vehicle. These drivers reacted much more slowly to the hazards than did drivers not engaged in these activities. Which of the following statements could apply to the results of the study?
A. Driving is automatic, so there is no explanation for increased reaction times.
B. PDP processing is superior to top-down processing.
C. The attentional resources of the drivers were exhausted.
D. Drivers are more vigilant when paying attention to multiple stimuli.
Answer: C
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