There is no spectacular difference in crash risk between using a cell phone in handheld mode versus hands-free mode as both are equally dangerous. Exposure is a determining degree of opportunity for a crash to occur; risk is a determining probability of a crash per unit exposure. Hence, the correct answer is given.
What is crash analysis?
A crash analysis approach is used for most roadways. In other words, the analyst examines the hot spots to surface and then develops countermeasures based on the crash type.
Therefore, the correct answer is as given above
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