28. The Article says: “It all started with 15-year-old Greta Thunberg from Sweden. She beganprotesting by herself in September 2018. But she wasn’t alone for long. Social media helpedGreta create Fridays for Future. Her efforts gained buzz on Twitter. Then, she spoke at aclimate meeting in Poland in December 2018.” The author uses this passage mostly to ____.
(A) Suggest that Greta Thunberg was too young to protest
(B) Help readers understand why climate change is important to Greta Thunberg
(C) Invite readers to join the Fridays for Future protests in Sweden
(D) Show that it only takes one person to make a difference