阅读下列短文，从每题所给的四个选项（A、B、C、D）中，选出最佳选项。 The film starts out as a normal day at a typical American high school．Friends chat in the dining room and boys play football． But there's a big surprise when the movie ends with two students going crazy in the school — shooting and killing people． This is Elephant．Filmed in just 20 days,it stars real school kids．American director Gus Van Sant had no readymade lines．The student actors made up their own dialogue．Van Sant asked them to base their characters on their own lives． Although it may not sound very high quality,the film won the Palmed．Or（金棕榈奖）for Best Film and the award for Best Director at the Cannes film festival in France on May 25． The film is based on the shooting at a high school in the US,where two boys killed 13 people and then themselves in 1999． The title of the movie refers to the old expression about a problem that's as hard to ignore（忽视）as an elephant in the house． The film takes a close look at a few hours in the lives of the victims and the killers．It shows how high school is a different experience for everyone— fun and friendly,or hard and lonely． In many ways,the two boys,who carry out the shooting,act like ordinary kids,they joke around with one boy's mother as she serves them cakes and play the piano． But,there are hints of the anger they feel inside．One of the boys is bullied at school．The other plays violent video games．But Van Sant isn't blaming their killings on either bullying or violent games．In fact,the film doesn't offer any reason why school violence happens． “I didn't want to explain anything．lt's up to the audience to draw its own conclusion,”said the 51-year-old director． | 
