Question

final exam
you must score at least 80% to earn your certificate of completion. a failing score will result in course failure and
forfeiture of your course fee—no refunds will be issued.

why cant drowsiness behind the wheel be detected with a simple roadside test?

○ fatigue only occurs at night.

○ there is no equivalent to a breathalyzer for sleepiness.

○ police refuse to test for fatigue.

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Explanation:

Drowsiness lacks a simple, portable test like a breathalyzer (used for alcohol). Unlike alcohol, sleepiness isn’t measurable via a quick roadside sample; it requires observing behavior or physiological signs that aren’t easily captured with a simple tool. The other options are incorrect: fatigue occurs anytime, not just at night, and police don’t refuse—they lack a valid simple test.

Answer:

B. There is no equivalent to a breathalyzer for sleepiness.