Which of the Following Is Linked to the Poor Performance

Which of the following is linked to the poor performance of American children in math and science as compared to Asian children?

A) Asian teachers spent lesser time teaching math than did American teachers.
B) Asian parents had much lower expectations for their children's education and achievement than did American parents.
C) American parents were more likely to say that their children's math achievement was the consequence of effort and training.
D) American parents were more likely to believe that their children's math achievement was due to innate ability.