Which of the following is an example of a transport option to prevent drink driving?

Offering a courtesy van is a clear and practical transport option aimed at preventing drink driving. When establishments provide a courtesy van service, they offer a safe means for patrons who have consumed alcohol to travel home without needing to drive. This option not only ensures the safety of the guests but also demonstrates the venue's commitment to responsible service and community welfare.

In contrast, hosted parties might create an environment that encourages excessive drinking, while encouraging guests to extend their stay does not actively address their transportation needs if they have been drinking. Organizing late-night events may also lead to increased alcohol consumption without providing a solution for getting home safely. Therefore, the courtesy van stands out as a proactive measure directly aimed at reducing the risk of drink driving.