Practice question

What is the effect of consuming cannabis (marijuana) before driving?

It improves lane tracking and spatial judgment
It impairs motor coordination, alters time and distance perception, slows reaction times, and increases crash risk
It increases physical strength and accelerates braking reflexes
It is completely safe if taken in small doses

Answer: B — It impairs motor coordination, alters time and distance perception, slows reaction times, and increases crash risk

The correct answer is shown above. Try the full quiz for additional practice.