The "Jigsaw Classroom," Originally Designed to Reduce Racial Tensions in Newly

The "jigsaw classroom," originally designed to reduce racial tensions in newly desegregated school districts in the 1970s,demonstrates ____.

A) the effectiveness of cooperation in reducing prejudice
B) that working independently,but side by side,eliminates prejudice
C) the role of in-group thinking in reducing prejudice
D) that prejudice in the classroom no longer exists