What defines a designated driver?

A designated driver is specifically defined as someone who abstains from consuming alcoholic beverages in order to safely operate a vehicle and ensure the safety of themselves and their passengers. The primary purpose of a designated driver is to provide a responsible option for transportation, particularly in social situations where drinking may occur. This proactive choice reflects an understanding of the risks associated with drinking and driving, highlighting the importance of designated drivers in preventing intoxicated driving incidents.

The other options do not accurately capture the concept of a designated driver. For instance, someone who drinks moderately may still not be sober enough to drive, while taking turns drinking with friends undermines the core idea of designating a specific individual to remain alcohol-free. Random selection does not ensure that the chosen driver will be sober or safe, which is crucial for the responsibility of being a designated driver.