Which source would be most useful for a columnist trying to encourage readers to donate time, funds, and food to their local food bank?

a report on the growing number of children in the community who go to bed hungry
an interview with the food bank director about how he got his job and what he likes about it
a budget report detailing the city's financial commitment to local services for people in need
a video of families waiting in line to receive fresh fruit and vegetables from the food bank