Which of the Following Statements Is True of Cooperative Learning

Which of the following statements is true of cooperative learning?

A) Interracial friendships can be promoted by replacing cooperative learning situations with competitive ones.
B) Students of different races who play and work together are less likely to report having friends of another race.
C) Compared with students at competitive schools, those at schools with interracial "learning teams" had more negative racial attitudes.
D) Students who are part of interracial cooperative learning groups tend to be less prejudiced.