Which of these statements is true about drugs and driving?

Legal prescription and over-the-counter drugs can impair your ability to drive, including drugs taken for colds, hay fever, allergies, or to calm nerves or muscles. It is illegal to drive while under the influence of any drug that impairs your ability to drive safely; this law does not differentiate between illegal, prescription, or over-the-counter drugs.

• Any prescription drug is safe to use if you don't feel drowsy.
• Even over-the-counter drugs can impair your driving.
• Only illegal drugs can impair your driving.