1My name is Maddox Smith. 2I am the Treasurer of the San Marcos High School Charity Club. 3We're having a canned food drive. 4This event is going to be off the hook and raise lots of dough for the homeless peeps. 5It's just two weeks away and I am writing to ask for your help. 6The Charity Club is planning to place collection boxes for canned food items at various local stores. 7We'd love it if you would allow us to place a bin at Shop Mart. 8All of the collections from the food drive will go to the local food bank to be sent out to local families who are really, super poor.

Which of the following sources might contain research that would support it?

an interview with a sponsor from last year
a brochure from the Charity Club
a television ad showing the volume of donations
a newspaper article reflecting the number of families helped
all of the above