Recent Findings Show That in the United States,twice as Many

Recent findings show that in the United States,twice as many African American students as white American students are classified as mildly intellectually disabled,which is a difference that experts attribute to __________.

A) less access to preschool services for African American children
B) poverty and cultural bias in testing
C) truancy and inadequate access to educational opportunities
D) inadequate opportunities for self-expression