(11-12)
       Justin Bieber? bom on March 1 ,1994, is a Canadian singer and song writer. Bieber’s manager， Scooter Braun, found him through his YouTube videos in 2007. Scooter was surprised to see the videos, and he talked Justin’s mother into letting Justin work with him.
       At the age of twelve, Bieber joined a singing contest in Startford and got second place. In Januaiy 2010, he released his first album. In July, the number of people who watched his music video Baby was more than lady Gaga's Bad Romance. The song soon became popular. He got many awards，including both Artist of the Year Awards, at the 2010 American Music Awards and the 2012 American Music Awards. In May 2013, however, a poll by Public Policy Polling found that Bieber 9s favorability of all Americans were 20% good and 54% bad. Bieber was caught by the police in January 2014? and that made him change from “boy-next-door” to “bad boy.” That he goes to parties very often has made the headlines of the newspaper many times. 
      Though he is the youngest star that has ever appeared on the Forbes list, how to make people love him again is by far the most important thing for him. He must know that money and power can make everything, but they can also lead to failure.
 manager 經紀人；talk...into...說服 ; release 發行; album 專輯; award 獎;including 包括；favorability 認同度
11.What does poll mean in the reading?
(A)To hurt people.
(B)To give up a bad habit.
(C)To ask for people's support.
(D)To find out what people think about someoneor something.