Which category of drugs can impair driving abilities?

The correct choice indicates that both prescription painkillers and stimulants can impair driving abilities. This is accurate because certain medications, particularly those classified as painkillers such as opioids, can lead to drowsiness, confusion, and delayed reaction times, all of which compromise a driver’s ability to operate a vehicle safely.

Stimulants, while sometimes used to enhance alertness, can also create risks, especially if taken in excess or when they affect mental state and decision-making. Together, these categories of drugs encompass a broad range of substances that can negatively influence a person's motor skills, judgment, and coordination.

Other options may misrepresent the scope of impairment. For example, stating that only recreational drugs impair driving ignores the significant risks associated with various prescribed medications and the effects of alcohol, which is an established impairing substance. Similarly, limiting the discussion to non-prescription medications overlooks the potential hazards posed by over-the-counter drugs that can also have sedative effects. Hence, it's essential to recognize that both prescription medications in different forms and their non-prescription counterparts can impair driving abilities, making the selected answer the most comprehensive.