Which BAC level is associated with greatly impaired body functions?

Which BAC level is associated with greatly impaired body functions?

• A. 0.01
• B. 0.02
• C. 0.04
• D. 0.08

Answer: (C)

Understanding how BAC affects your ability to drive helps explain why this level stands out. As BAC rises, impairment grows, affecting coordination, balance, and reaction time. At very low levels like 0.01 or 0.02, effects are mild and may not drastically hinder driving. When BAC reaches about 0.04, coordination and visual tracking start to deteriorate more noticeably, and reaction times slow, making tasks like steering, braking, and judging gaps much harder. This level is typically described as greatly impairing your ability to drive because the basic motor and perceptual skills needed for safe operation are significantly reduced. Higher levels, such as 0.08, cause even more severe impairment, but among these options, 0.04 best matches a point where driving safety is clearly compromised.

Understanding how BAC affects your ability to drive helps explain why this level stands out. As BAC rises, impairment grows, affecting coordination, balance, and reaction time. At very low levels like 0.01 or 0.02, effects are mild and may not drastically hinder driving. When BAC reaches about 0.04, coordination and visual tracking start to deteriorate more noticeably, and reaction times slow, making tasks like steering, braking, and judging gaps much harder. This level is typically described as greatly impairing your ability to drive because the basic motor and perceptual skills needed for safe operation are significantly reduced. Higher levels, such as 0.08, cause even more severe impairment, but among these options, 0.04 best matches a point where driving safety is clearly compromised.