What factors can cause intoxication?

The correct answer focuses on substances that have a direct impact on the central nervous system and can lead to intoxication. Liquor, prescription medication, and drugs can all alter a person's mental and physical state.

Liquor contains alcohol, which is a well-known intoxicant that impairs cognitive functions, motor skills, and alters judgment. Prescription medications, particularly those that affect the brain, such as opioids, benzodiazepines, and other sedatives, can also cause intoxication by producing effects similar to alcohol. Similarly, illicit drugs may have potent psychoactive effects that lead to various states of intoxication, ranging from euphoria to altered perception and impaired functioning.

In contrast, the other options list factors that do not inherently cause intoxication. A healthy diet, exercise, and hydration contribute to overall wellness and may impact how the body processes substances but do not directly cause intoxication. Sleep deprivation and stress can lead to cognitive impairment but are not substances that intoxicate in the same manner. Lastly, caffeine, sugar, and water do not intoxicate; while caffeine can stimulate and sugar can affect energy levels, they do not produce a state of intoxication like alcohol or drugs do.