单项选择题

Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

Which of the following is NOT true about the findings of the polls

A.Good family atmosphere gives kids an advantage in school study.
B."Family gap" applies to students of all backgrounds.
C.Parents’ education background has little impact on the children’s score.
D.There is a racial and gender difference on the children’s score.