Correct Response: C. Alcohol use impacts regions of the brain involved in motor function. This can impair motor reflexes and reaction time, resulting in poor coordination and an increased risk of injury. The ethanol in alcoholic beverages is a psychoactive drug (A), which means that it is a drug that alters brain function in some way. However, the fact that ethanol is a psychoactive drug does not explain the specific effects that increase the likelihood for injury. Alcohol tends to dull, rather than enhance, sensory perceptions and tactile sensations (B). Similarly, alcohol consumption slows, rather than speeds up, metabolism (D).
