Which of the following skills can be influenced even at low BAC levels?

Cognitive and psychomotor skills are significantly affected even at low blood alcohol concentration (BAC) levels. Cognitive skills include mental processes such as thinking, understanding, learning, and remembering, which are crucial for decision-making and processing information quickly. When alcohol is introduced into the system, it impairs these functions, creating a risk for individuals making poor judgments or decisions in environments such as bars or restaurants where responsible service is critical.

Psychomotor skills involve coordinating physical movements and are essential for activities like driving or serving alcohol. Alcohol can impair coordination, balance, and reaction times even at low BAC levels, increasing the likelihood of accidents or errors in service. This highlights the importance of understanding the effects of alcohol and underscores why servers need to be vigilant and knowledgeable about these impacts, ensuring they provide safe environments for customers.

The other skill categories, while they may experience some influence from alcohol, are less directly connected to the immediate safety implications that cognitive and psychomotor skills entail in situations involving alcohol consumption.