Practice question

Over-the-counter medication:

  1. Poses no safety risks to a driver.
  2. Is not referenced by any laws regarding driving under the influence.
  3. Cannot impair a driver.
  4. Can affect a person’s ability to drive safely.

Answer: D — Can affect a person’s ability to drive safely.

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

Practice more: Colorado CDL Passenger Test 1 →