Which of the Following Is a Factor to Consider Regarding

Which of the following is a factor to consider regarding the gap in educational achievement between U.S.students and other students around the world?

A) U.S.students spend more time in classes and get less intensive instruction.
B) There is a broader diversity of students in the U.S.when compared to the student bodies of other countries,where the school population is more homogeneous and affluent.
C) U.S.parents and students do not care as much about education as do parents and students from other countries.
D) There are low literacy rates for female U.S.students.