Based on the Information in Chapter 15, Which of the Following

Based on the information in Chapter 15, which of the following statements is most accurate?

A) The schools of most nations include diverse groups of students whose cultural and religious heritages vary significantly.
B) Only in very homogeneous countries do school populations comprise diverse groups.
C) Students in few countries reflect the diversity found in the United States.
D) The once-rapid rise of diversity in most nations has slowed down in the twentieth century.