When did the individuals last take a holiday?

The choice of February 2020 as the correct answer indicates that this is the most recent date the individuals took a holiday before the significant changes brought about by the COVID-19 pandemic that began in March 2020. It is important to recognize that for many individuals, February 2020 represents the last point in time when travel for leisure was widely normalized and feasible.

Selecting February signifies an understanding that after this date, travel circumstances would shift dramatically due to health and safety advisories, border restrictions, and a global lockdown that changed how people approached vacations. The other dates, although they are just a month or two apart, do not capture the last common timeframe for travel before these changes occurred, making February 2020 a pivotal moment in travel history for many.