Which task would likely involve a higher judgment required at elevated blood alcohol levels?

The task of complex divided attention skills involves a higher level of cognitive processing and the ability to manage multiple streams of information simultaneously. At elevated blood alcohol levels, an individual’s ability to maintain focus and adequately respond to different tasks diminishes significantly. Alcohol impairs both cognitive function and attention span, which are crucial for performing complex tasks that require the processing of multiple inputs or the simultaneous handling of various actions.

In contrast, simple cognitive tasks, walking, and talking generally demand less mental effort and can be impaired but do not require the same level of nuanced judgment and rapid decision-making as complex divided attention tasks. Therefore, when someone is under the influence of alcohol, they are more likely to struggle with complex tasks that require quick thinking, multitasking, and prioritizing among competing demands, making this option the most challenging at elevated blood alcohol levels.