Final answer:
If you drink and have reached a BAC of slightly above 0.05%, the risk of causing a motor vehicle accident is significantly higher compared to being sober.
Step-by-step explanation:
The risk of causing a motor vehicle accident increases as the blood alcohol concentration (BAC) rises. If you have reached a BAC of slightly above 0.05%, the risk of causing a motor vehicle accident is significantly higher compared to being sober. Alcohol impairs your ability to react quickly, affects your coordination and judgment, and decreases your alertness. These effects can make it difficult to operate a vehicle safely.