Which of the following substances can affect the ability to drive?

Sedatives.
Cold tablets containing codeine or antihistamines.
Tranquilizers.
All of the above.
Explanation

Besides alcohol, there are many drugs that can affect your ability to safely operate a vehicle. Substances like cold tablets containing codeine or antihistamines, tranquilizers, and sedatives can impair a person's ability to drive safely. These drugs, whether prescription or over-the-counter, have the potential to cause drowsiness and affect cognitive functions necessary for safe driving.

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