Adan has to write a report on the benefits of after-school debate clubs. Which two sources would give Adan the best information?
an online report titled "Influence of Debate Clubs on Academic Performance"
a Web site that lists the most popular topics for after-school debate clubs
an article about how debate clubs reduce stage fright among students
an interview of an organizer of a school's after-school club
a blog written by Adan's classmate who is a part of an after-school debate club