What phrase from the passage exposes the author's bias? A. "Litterbugs need to wake up and see what their careless actions are doing to the environment." B. "At one point, I saw him sniffing and licking at something by a tree, but I didn't think anything of it . . ." C. "Animals get poisoned, water supplies get polluted, people get fatally injured, and our world gets ugly." D. "I took him off his leash, and like always, he ran around with glee and played with the other dogs."