According to the Survey Data Analyzed by Slavin and Madden

According to the survey data analyzed by Slavin and Madden (1979) ,which of the following statements is true of cooperative learning?

A) Interracial friendships are 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" have more negative racial attitudes.
D) Students of different races who play and work together are more likely to express positive racial attitudes than other students.