单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.

What is the possible reason of the move to ban Huckleberry Finn from schools

A.Some people believe the book is a distortion of the Civil War.
B.Some people believe the book is a distortion of the black people.
C.Some people believe the book contain obscene elements.
D.Some people believe the book advocates racial dominance.